000 00347nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.8:016
_bKRI
100 _aKrishna, M G
245 0 _aPetroleum products as feestocks for ammonia manufacture
260 _aNew Delhi
_bFAI
_c1969
490 _aFertilizer Institute Proceedings 4
942 _cBK
999 _c21900
_d21900