Systems analysis in forage crops production and utilization : Papers presented at the annual meeting of the Crop Science Society of America in Las Vegas, Nevada, November 1973
editor: R.W. Van Keuren.
Madison, Wis. : Crop Science Society of Agronomy, 1974.
64 págs. : ilustraciones ; 22 cm.
Serie: CSSA. Special publication ; nº 6
ISBN: 9780891185857