000 00300nam a2200109Ia 4500
008 140321s9999 xx 000 0 und d
082 _a016.63184
245 _aNitrogen in Indian Agriculture
260 _aNew Delhi
_bEuropean Nitrogen Service Programme
_c1970
300 _a"xix, 466 p."
942 _cB
999 _c161639
_d161639