edited by Paul W. Unger

Lewis 1994

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sponsored by Divisions A-3, S-6, and S-1 of the American Society of Agronomy and the Soil Science Society of America ; organizing committee, D.M. Van Doren ... [et al.] ; editorial committee, P.W. Unger ... [et al.] ; managing editor, David M. Kral ; assistant editor, Sherri Hawkins

American Society of Agronomy : Soil Science Society of America 1982 ASA special publication no. 44

: pbk

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