Modeling plant and soil systems - Hanks, John,; Ritchie, J. T.,; Mickelson, S. H.,; Stuber, C. W.,; Luxmoore, R. J. (American Society of Agronomy, Inc. ; Crop Science Society of America, Inc. ; Soil Science Society of America, Inc., 1991)
Number 31 in the series Aronomy.