633.2
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Van Keuren, R. W.
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 p. : il. ; 22 cm. — (CSSA. Special publication ; nº 6)
ISBN 9780891185857
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