00455nam a2200169Ia 4500008004100000020001500041082001700056100002100073245003200094260004000126300000800166650004100174650003400215653001300249653001300262653001000275170901s1978    xx            000 0 und d  a0471918059  a633.15bW12M  aWalden, David B. 0aMaize Breeding and Genetics  aNew YorkbJohn wiley and Sonsc1978  a794  aAgriculture and related technologies  aTechnology (Applied sciences)  aBreeding  aGenetics  aMaize