000
00257nam a2200097Ia 4500
100
_a
CIMMYT
245
_a
CIMMYT Report on Maize Improvement 1980-81
260
_b
Int Maize & Wheat Improvement Centre, Mexico
082
_a
N81/B15726
300
_a
pp 98; 28*21
999
_c
28857
_d
28857