00553cam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001800102100003300120245005800153250001000211260003500221300002000256650002400276650001400300650002100314CHAP20220329140929.0971013s1948            r     00010     d  a59961  a60933  a65097  cCHAP  a633bH88 194800aHutcheson, Thomas Barksdale.14aThe production of field crops, a textbook of agronomy  a3 ed.  aNew York :bMcGraw-Hill,c1948  a430 p.b: ilus.14aAgriculturaxE.U.A.14aCultivos.14aCultivosxE.U.A.