000			00433nam a22001577a 4500
999			_c16048 _d16048
020			_a069709880x
082			_a363.7
100			_aEnger, Eldon D.
245			_aEnvironmental science : A study of Interrelationships
250			_a4th ed.
260			_aMichigan; _bWm. C. Brown publisher5s _c1991.
300			_axxi, 434p. _bill. picture, map
500			_ainclude indexand References
700			_aSmithy, Bradley.
942			_cBK