000			00419nam a2200145Ia 4500
008			211109s9999||||xx |||||||||||||| ||und||
082			_a510 _bKOC-P
100			_aKochumman, C
245		0	_aPragathakalanam
260			_bState Institute of Languages _aThiruvananthapuram _c1974
300			_a468p.
630			_xgeneral stack
650			_ascience _vnatural science and mathematics _xmathematicsGeneralia
942			_cBOOK
999			_c87981 _d87981