Marine tourism / 
edited by 3G E-learning LLC.    
 - USA :  3G E-Learning LLC,  2017. 
 - xii, 238 p. :  col. ill. ;  24 cm. +  1 CD-ROMs (4 3/4 in.)  
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781680956634  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine ecotourism.