Weaver, David <br/><br/>
Ecotourism 

 -  John Wiley & Sons, Inc.  2001 
<br/><br/> includes glossary, references and index 
<br/><br/><label>ISBN: </label>0-471-42229-0 
<br/><br/><label>Dewey Class. No.: </label>338.4791 W37 2001