Turk, A. <br/><br/>
Environmental Science/ 

 - 2nd ed. 
 - Philadelphia  W.B.Saunders Company  1978 
 - xiii; 596p.  ills. 
<br/><br/><label>ISBN: </label>0721689272 
<br/><br/><label>LC Class. No.: </label>QH541  / En8 1978