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020 _a978 131 090 1
040 _cTUM
050 _aTP248 .3 .56
100 _aThottappilly G
245 _aBiotechnology: Enhancing Reseach On Tropical Crops In Africa
250 _a0
260 _aIbadan
_bIita
_c1992
300 _a,;ill.
942 _2lcc
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