Sustainable tourism : a marketing perspective 
Middleton, Victor T. C. 
 -  Butterworth-Heinemann,  1998 
 - xiv, 266 p 
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<br/><br/><label>ISBN: </label>0-7506-2385-3 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecotourism.
<br/><br/><label>Dewey Class. No.: </label>338.4791 M58s 1998