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Classification of wheat varieties grown in the United States in 1939
Clark, J. Allen; Bayles, B. B. - 1942
Persistent link: https://www.econbiz.de/10001640717
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Breeding hard red winter wheats for winter hardiness and high yield
Quisenberry, Karl S.; Clark, J. Allen - 1929
Persistent link: https://www.econbiz.de/10003367396
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Cereal experiments at Dickinson, N. Dak.
Clark, J. Allen - 1914
Persistent link: https://www.econbiz.de/10003370286
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Distribution of the classes and varieties of wheat in the United States
Clark, J. Allen (contributor) - 1929
Persistent link: https://www.econbiz.de/10003372203
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Inheritance of awnedness, yield, and quality in crosses between bobs, hard federation, and propo wheats at Davis, California
Clark, J. Allen; Florell, Victor Homer; Hooker, John R. - 1928
Persistent link: https://www.econbiz.de/10002010321
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Soil Survey (Reconnaissance) of St. Croix Island, Virgin Islands
Thorp, James - Economic Research Service, Department of Agriculture - 1932
Persistent link: https://www.econbiz.de/10010923013