000 00321nam a22001337a 4500
008 180402b xxu||||| |||| 00| 0 eng d
020 _a8179190015
082 _a581.15
100 _aRai, B.
245 _aHeterosis Breeding
260 _aDelhi
_bAgro Biological Publications
_c1979
300 _a235pp
942 _2ddc
_cB
999 _c96204
_d96204