000 00268nam a2200121Ia 4500
008 221219s9999 xx 000 0 und d
100 _aD.K.Das
245 0 _aIntroductory Soil Science
250 _a4th
260 _bKalyani
650 _aSoil science
942 _cBK
999 _c2052
_d2052