Crop tolerance to suboptimal land conditions : proceedings of a symposium : the papers were presented during the annual meeting in Houston, Texas, November 28-December 3, 1976
· sponsored by Divisions A-6 ... [et. al.] of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America ; organizing committee D.L. Plucknett, chairman ... [et al.] ; editor Gerald A. Jung ; editor-in-chief Matthias Stelly ; managing editor David M. Kral ; assistant editor Judith H. Nauseef
Bok Engelsk 1978