Weeks, W. William. <br/><br/>
Beyond the ark :  tools for an ecosystem approach to conservation / 
W. William Weeks ; foreword by Bruce Babbitt. 
 - Washington, D.C. :  Island Press,  c1997. 
 - xvi, 172 p. :  ill., map, ports. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>155963393X (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecosystem management.<br/>Nature conservation.
<br/><br/><label>Dewey Class. No.: </label>333.72