000			00355nam a2200169Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
100			_aSingh S.
245		0	_aEngineering materials
260			_aDelhi
260			_bVikas Publication
260			_c1983
300			_a240p.
365			_b25
650			_aCHEMISTRY
942			_cDBK
999			_c15905 _d15905