000 00293nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aDiwa Kumari Singh
245 0 _aTechnological Change and Agrl. Development
260 _bDeep and Deep
260 _c1993
365 _b200
942 _cBK
999 _c217401
_d217401