00581nam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001400102110005100116245003800167260003400205300001900239490002900258650001400287650003300301830002900334CHAP20220817042017.0971013s1973            r     00010     d  a31755  a32727  a36842  cCHAP  a633.2bC7  aCrop Science Society of America. Madison, Wis.  aRange research and range problems  aMadison, Wis :b(s.e.),c1973  a91 p.b: ilus.  aSpecial publicationv; 314aForrajes.14aPastizalesxInvestigación.0 aSpecial publicationv; 3