Botkin, Daniel B. <br/><br/>
Discordant harmonies : a new ecology for the twenty-first century / by Daniel B. Botkin. 

 - New York, N.Y. :  Oxford University Press,  1990. 
 - xii, 241 p. : ill. ; 22 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0195054911 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature conservation.<br/>Environmental protection.<br/>Environmental policy.