000 00304nam a2200121Ia 4500
008 221219s9999 xx 000 0 und d
100 _aN.C. Singhal
245 0 _aHybrid seed Production in field Crops
_bPrinciple & Practices
250 _a2nd
260 _bkalyani
650 _aBreeding
942 _cBK
999 _c2079
_d2079