written by the staff of the Ortho book series in association with the authors and consultants listed ... ; edited by Lance Walheim ; photography by William Aplin, Clyde Childress, Michael Landis ; ill. by Ron Hildebrand
cosponsors ... American Society of Agronomy ... [and others] ; editorial committee, Frank W. Schaller, co-editor, Paul Sutton, co-editor ; program planning committee, Paul Sutton, chairman ... [and others]