000			00321nam a2200133Ia 4500
005			20260205045047.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a915.4 M691C
100			_aMisra , R . P.
245		0	_aConcepts and approaches
260			_aDelhi _bHeritage pub. _c1983
300			_a320p.
942			_cBK
999			_c69259 _d69259