00444nam a2200133Ia 4500008004100000082001700041100003300058245005300091260003400144300000900178942000700187952009900194999001700293140113s9999    xx            000 0 und d  a633.002   K7  a"Martin, J.H. & Leonard W H"  aPrinciples of field crops production 2nd edition  a1967bMacMillan Co.cNew York  a1044  cBK  00104070aVTLbVTLd2014-01-13l0o633.002   K7pVBK193r2014-01-13 00:00:00w2014-01-13yBK  c56871d56871