Tesar, Jenny E. <br/><br/>
Threatened oceans / 
Jenny Tesar. 
 - New York, NY :  Facts on File,  c1991. 
 - 112 pages. :  illustrations 
 - Our fragile planet .
 - Tesar, Jenny E.  Our fragile planet. .
<br/><br/>Includes bibliographical references (p. 107-108) and index. 
<br/><br/> Explores the vital importance of ocean ecosystems and resources and focuses on how fishing, dumping, oil spills, and other human influences endanger the marine environment. 
<br/><br/><label>ISBN: </label>0816024944 (alk. paper) 
<br/><br/><label>LCCN: </label>90047194  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oceanography--Juvenile literature.<br/>Ocean.<br/>Marine ecology.<br/>Marine resources conservation.<br/>Ecology.
<br/><br/><label>LC Class. No.: </label>GC21.5  / .T47 1991 
<br/><br/><label>Dewey Class. No.: </label>331.91 .TES 1991