Molina E. Sergio <br/><br/>
Turismo y ecología 
Sergio Molina E. 
 - 6a ed. , 1ra. reimpr. 
 - México  Trillas  1998, 2000. 
 - 198 p.  ill.  24 cm. 
 - Trillas turismo .
<br/><br/>Includes bibliographical references (p.187-188) and index. 
<br/><br/><label>ISBN: </label>9682456401(pbk.)  28.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enviromental protection--Government policy<br/>Pollution<br/>Enviromental policy<br/>Ecotourism<br/>Ecology<br/>Tourism