000 00301 a2200121 4500
080 _a631.522(063)
_bF 893 P
245 1 _aPlant breeding
_cby K.J. Frey
260 _aU.S.A.
_bIowa State University Press
_c1966
650 _aPlant Breeding
100 1 _aFrey, K.J.
_d
300 _a430 p.
901 _a94180
999 _c44680
_d44680