00692nam a2200181ua 4500003001000000005001700010008004100027040003000068245007100098260005600169490006500225504002800290650002200318655001700340700003800357999001700395952009800412AR-SsjUCA20250715142402.0250228s1967    xxu           000 0 eng d  aAR-SsjUCAbspacAR-SsjUCA00aChallenge to agronomy for the future /cRobert S. Whitney, editor.  aMadison, WI :bAmerican Society of Agronomy,c1967.0 aSpecial publication / American Society of Agronomy ;vno. 10  aIncluye bibliografía. 4aAgronomía95391 4aTexto9240881 aWhitney, Robert S.eeditor932627  c20206d20206  00104070aCAbCAd2014-10-11l0o63 WHIc Ej.1pXCA2373r2025-07-15 00:00:00w2025-07-15yLB