Environmental science :  The study of interrelationships / 
Eldon D. Enger...[at al.]. 
 - 3rd ed. 
 - Toronto:  WM. C.  Brown publishers ,  1989. 
 - xiv, 540  p.:  ill.; 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>069705134 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science
<br/><br/><label>LC Class. No.: </label>QH541 .E58 1989