000 00511nam a22001337a 4500
005 20251217111001.0
008 251217b |||||||| |||| 00| 0 eng d
050 _aSB323.T5 1988
100 _aTIMOTHY , D. H / HARVEY , P . H / DOWSWELL , C . R .
245 _aDEVELOPMENT AND SPREAD OF IMPROVED MAIZE VARIETIES AND HYBRIDS IN DEVELOPING COUNTRIES
_cDAVID H . TIMOTHY / PAUL H . HARVEY / CHISTOPHER R . DOWSWELL .
260 _aWASHINGTON
_bMETROTEC , INC .
_c1988
300 _axi, 71p.;ill.:
_bHbk
942 _cBK
999 _c27171
_d27171