000 00336nam a2200133Ia 4500
008 220721s1973 xx 000 0 und d
041 _aeng
082 _a589.47
100 _aGrewal, J.S.
245 _aPotassium and Ammonium Fixation in Indian Soils
260 _aNew Delhi
_bIcar
_c1973
300 _aiii, 75P.
999 _c78594
_d78594