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by Pierre, W. H.; Norman, A. G.;
Year: 1953., Callno: 631.811.2 SOI
Book
by American Society of Agronomy.; Soil Science Society of America.; Symposium of Plant Environment and Efficient Water Use (1965 : Ames, Iowa); Pierre, W. H.;
Year: 1965, Callno: 631.432.2 PLA
Conference proceedings