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261

Surface mining and the limits of reclamation : what is being reclaimed? What is not? /

Surface mining and the limits of reclamation : what is being reclaimed? What is not? /

Опубликовано 1979

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262

Living on a few acres.

Living on a few acres.

Опубликовано 1978

Government Document ‌

263

Poisonous plants of Pennsylvania /

Poisonous plants of Pennsylvania /

по Gress, Ernest Milton, 1876-1968
Опубликовано 1935

Government Document ‌

264

The American shepherd : being a history of the sheep, with their breeds, management, and diseases : illustrated with portraits of different breeds, sheep barns, sheds, &c. : with an appendix, embracing upwards of twenty letters from eminent woolgrowers and sheep-fatteners of different states, detailing their respective modes of management /

The American shepherd : being a history of the sheep, with their breeds, management, and diseases : illustrated with portraits of different breeds, sheep barns, sheds, &c. : with a...

по Morrell, Luke A.
Опубликовано 1845

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265

Plant growth substances : based on a symposium presented at the 13th Middle Atlantic Regional Meeting of the American Chemical Society at West Long Branch, New Jersey, March 19-23, 1979 /

Plant growth substances : based on a symposium presented at the 13th Middle Atlantic Regional Meeting of the American Chemical Society at West Long Branch, New Jersey, March 19-23,...

Опубликовано 1979

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266

The bounty of Chesapeake : fishing in colonial Virginia /

The bounty of Chesapeake : fishing in colonial Virginia /

Опубликовано 1957

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267

Charles Anthony Goessmann,

Charles Anthony Goessmann,

Опубликовано 1917

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268

The problems of applied entomology /

The problems of applied entomology /

по Wardle, Robert Arnold, 1890-1974
Опубликовано 1929

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269

The Biosaline concept : an approach to the utilization of underexploited resources /

The Biosaline concept : an approach to the utilization of underexploited resources /

Опубликовано 1979

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270

The formation of soil material /

The formation of soil material /

по Paton, T. R.
Опубликовано 1978

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271

Report upon the development of public grounds for greater Baltimore,

Report upon the development of public grounds for greater Baltimore,

Опубликовано 1904

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272

Protecting our food /

Protecting our food /

Опубликовано 1966

Government Document ‌

273

Linking research to crop production /

Linking research to crop production /

Опубликовано 1980

Conference Proceeding ‌

274

The Biology of crop productivity /

The Biology of crop productivity /

Опубликовано 1980

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275

The behavior of radioactive fallout in soils and plants.

The behavior of radioactive fallout in soils and plants.

по Frere, Maurice H.
Опубликовано 1963

Government Document ‌

276

Genetic improvement of seed proteins : proceedings of a workshop, Washington, D.C., March 18-20, 1974 /

Genetic improvement of seed proteins : proceedings of a workshop, Washington, D.C., March 18-20, 1974 /

Опубликовано 1976

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277

Insecticide biochemistry and physiology /

Insecticide biochemistry and physiology /

Опубликовано 1976

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278

Contemporary pest control practices and prospects : the report of the Executive Committee, Study on Problems of Pest Control, Environmental Studies Board, National Research Council.

Contemporary pest control practices and prospects : the report of the Executive Committee, Study on Problems of Pest Control, Environmental Studies Board, National Research Council...

Опубликовано 1975

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279

Landscape design for the disabled /

Landscape design for the disabled /

по Jorgensen, Jay
Опубликовано 1975

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280

Workshop in Animal Technician Training [proceedings].

Workshop in Animal Technician Training [proceedings].

Опубликовано 1965

Conference Proceeding ‌