000 00425nam a2200133 4500
005 20251021094455.0
008 251021b |||||||| |||| 00| 0 eng d
050 _aSB 191 .M2.75 1956
100 _aTimothy, H.D.
245 _aDevelopment and spread of improved maize varieties and hybrids developing countries/
_cTimothy, H.D.
260 _aWashington DC
_bBureau for science
_c1956
300 _axi71 illus
_bHbk
942 _cBK
999 _c25333
_d25333