000 00320nam a22001337a 4500
003 OSt
008 241009b |||||||| |||| 00| 0 eng d
082 _a633.15
_bU-4M
100 _aU.S.D.A
245 _aMaize genetics Co operation ,New Letter,55
260 _aColumbia U.S.D.A
_c1981
300 _a161
942 _2ddc
_cPER
999 _c46318
_d46318