Morgan, Michael D. <br/><br/>
Environmental science :  managing biological & physical resources / 
Michael D. Morgan, Joseph M. Moran and James H. Wiersma. 
 - Dubuque, Iowa :  W.C. Brown,  c1993. 
 - various pages :  illustrations ;  28 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0697108015 0697163059 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.
<br/><br/><label>Dewey Class. No.: </label>363.7 MOR