Planet management / 
by general editor Michael Williams. 
 - New York, N.Y. :  Oxford University Press,  1993. 
 - 256 p. :  col. ill., col. maps ;  31 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0195209451 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection.<br/>Human ecology.