00389nam a2200133Ia 4500008004100000082001600041100002200057245003600079260004400115300000800159650004100167650003400208653001300242170901s1977    xx            000 0 und d  a631.5bV50S  aVarma, Uday Kumar 0aSasya Vigyan Ke Adhunik Sidhant  aPatnabBihar Hindi Granth Academyc1977  a480  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgronomy