000 00294nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.452
_bIND
245 0 _aInternational symposium on soil fertility evaluation
260 _aNew Delhi
_bIARI
_c1971
650 _aSoil fertility
942 _cBK
999 _c22263
_d22263