000			00321nam a22001337a 4500
999			_c196994 _d196994
003			LDD
005			20220209123340.0
008			220209b ||||| |||| 00| 0 eng d
040			_aIGNOU Library
245			_aJournal of College Science Teaching
260			_bNSTA _c1991-92
300			_aVolume 21(2-6)
942			_2ddc _cJ