000			00340nam a2200133Ia 4500
005			20260205040209.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a537.5 SP31I
100			_aSPEAKMAN J C
245		0	_aINTRODUCTION TO THE ELECTRONIC THEORY OF VALENCY
260			_aLOND. _bEDWARD ARNOLD _c1955
300			_a180
942			_cBK
999			_c1714 _d1714