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Agriculture
Economic aspects
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42
by Norton, John Pitkin, 1822-1852
Published 1850
Published 1850
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Book
43
44
by Hobson, P. N.
Published 1977
Published 1977
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Book
45
by Lionberger, Herbert F. (Herbert Frederick), 1912-
Published 1960
Published 1960
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Book
46
by Lewis, Oscar, 1914-1970
Published 1960
Published 1960
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Book
47
48
by Copeland, Melvin Thomas, 1884-1975
Published 1933
Published 1933
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Book
49
by Darwin, Erasmus, 1731-1802
Published 1800
Published 1800
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Book
50
51
52
by Wilson, Charles Morrow, 1905-1977
Published 1943
Published 1943
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Book
53
54
by Emmons, Ebenezer, 1799-1863
Published 1846
Published 1846
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Government Document
Book
55
by Bidwell, Percy W. (Percy Wells), 1888-1970, Falconer, John I. (John Ironside), 1888-1963
Published 1925
Published 1925
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Book
56
57
by Sanford, Albert Hart, 1866-
Published 1916
Published 1916
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Book
58
59