000			00313nam a2200133Ia 4500
008			180611s9999||||xx |||||||||||||| ||und||
041			_aen
082			_a820
100			_aADLER , John C.
245		0	_aInvention
260			_aNew York . _bHarcourt Brace Jovanovich, US _c1972
300			_axii, 227p.
942			_cLL
999			_c4275 _d4275