000			00372nam a2200157Ia 4500
008			170101s1976 xx 000 0 und d
082			_a574.5 S62E
100			_aSOUTHWIEK, Charles H
245		0	_aEcology and the quality of our environment
250			_a2nd ed
260			_bN.Y _c1976
300			_a426p
650			_aECOLOGY
653			_aECOLOGY
942			_2ddc _cB
999			_c70064 _d70064