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by Shkurko, V. N. (Valentin Nikolaevich)
[Place of publication not identified] : [publisher not identified], 1971
[Place of publication not identified] : [publisher not identified], 1971
Book
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by Vinogradov, A. P. (Aleksandr Pavlovich), 1895-1975
New York : Consultants Bureau, 1959
Second edition, revised and enlarged
New York : Consultants Bureau, 1959
Second edition, revised and enlarged
Book
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by Nuttonson, M. Y. (Michael Y.), 1904-
Silver Spring, Md. : American Institute of Crop Ecology, 1970
Silver Spring, Md. : American Institute of Crop Ecology, 1970
Book
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