Buckley, Ralf. <br/><br/>
Ecotourism :  principles and  practices / 
Ralf Buckley. 
 - Cambridge, Mass. :  CABI,  c2009. 
 - x, 368 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references (p. 317-362) and index. 
<br/><br/><label>ISBN: </label>9781845934576 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecotourism