000			00335nam a2200145Ia 4500
008			230917s9999||||xx |||||||||||||| ||und||
040			_e84936 _aMAIN
041			_aEnglish
082			_a374 S19O
100			_aSahoo, P K
245		0	_aOpen learning system
260			_aNew Delhi _bUppal _c1994
300			_axiv, 316 p.
942			_cBK
999			_c78768 _d78768