000 00301nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aSINGH (S.S)
245 0 _aPrinciples and practice of Agronomy
260 _b"Kalyani publishers, New Delhi"
260 _c2009
365 _b150.00
942 _cBK
999 _c157362
_d157362