000			00425nam a22001577a 4500
999			_c1328 _d1328
020			_a0-8094-9708-5
082			_aRef. 577 E193 1992
245	1	0	_aEcology.
260			_aAlexandria, Virginia : _bTime-Life, _cc1992.
300			_a151 p. : _bcol., ill. ; 31 cm.
490			_a(Understanding Science & Nature).
500			_aIncludes index.
650	1	4	_aEcology. _92590
650	2	4	_aEnvironmental biology. _92591
942			_cBK