International agronomy training & education : papers presented at the annual meeting ...
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editors: J. Ritchie Cowan, L.S. Robertson ; managing editors: Steven A. Breth, David M. Kral ; coordinating editor: Matthias Stelly
Bok
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Engelsk
·1969
Detaljer
Utgitt
Madison, Wis. : American Society of Agronomy, Crop Science Society of America, Soil Science Society of America , 1969
