Agronomy in a changing world ; and, Research needs for the seventies /

Bibliographic Details
Corporate Authors:	American Society of Agronomy, Crop Science Society of America
Other Authors:	Black, C. A. (Charles Allen)
Format:	Book
Language:	English
Published:	Madison, Wis. : American Society of Agronomy, 1971.
Series:	ASA special publication ; no. 19.
Subjects:	Agricultural ecology. Agriculture > Research.

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