000			00310nam a2200133Ia 4500
005			20260205044450.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a330.973 H368E
100			_aHELLER , WALTER W
245		0	_aECONOMY
260			_aNEW YORK _bW.W.NORTON _c1971
300			_a224p.
942			_cBK
999			_c57319 _d57319