000 00285 a2200121 4500
080 _a633.11(063)
_bW 539 P
245 1 _aProceedings
260 _aMexico
_bInternational Maize and Wheat Improvement Center
_c1971
650 _aWheat
100 _a
_d
300 _a88 p.
901 _a118973
999 _c84767
_d84767