000			00339nam a2200133Ia 4500
008			190216s9999||||xx |||||||||||||| ||und||
100			_aFowles. G.W.A
245		0	_aValency And Molecular Structure
250			_a4th Ed.
260			_bThe English Language Book Society _c1956
300			_a341
650			_aChemistry-Chemistry
942			_cBK
999			_c2158 _d2158