000 00302nam a2200121Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
082 _a510 CHA
100 _aD.S.C
245 0 _aEngineering mathematics-III
260 _bNew Delhi
_c2002
300 _a189p.
_b100
650 _aENVIRONMENTAL STUDIES
_9107
999 _c136179
_d136179