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141
Study week on organic matter and soil fertility. April 22-27, 1968.
Published 1969

Conference Proceeding Book
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142
Use and conservation of the biosphere; proceedings.
Published 1970

Conference Proceeding Book
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143
Aspects of fish parasitology;
Published 1970

Book
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144
Statistical genetics and plant breeding; a symposium and workshop
Published 1963

Conference Proceeding Book
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147
Insecticides; proceedings.
Published 1972

Conference Proceeding Book
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148
Biological quality and precision agriculture II : 6-8 November 2000, Boston, USA /
Published 2000

Book
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149
Transactions.
Published 1968

Conference Proceeding Book
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151
Ecological design and planning /
Published 1997

Book
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152
Biological control; proceedings.
Published 1971

Conference Proceeding Book
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153
Prophet with honor : the career of Andrew Jackson Downing, 1815-1852 /
Published 1989

Conference Proceeding Book
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154
Science, conservation, and national parks /
Published 2017

Book
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155
Taking stock of our future : conference proceedings, December 5, 1999 /
Published 2001

Book
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157
Understanding community-based forest ecosystem management /
Published 2001

Book
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159
Genetic response of forest systems to changing environmental conditions /
Published 2001

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