Travel services :  intermediate / 
edited by 3G E-learning LLC.     
 - 2nd ed. 
 - USA :  3G E-Learning LLC,  2018. 
 - v, 346 p. :  col. ill. ;  30 cm. +  1 CD-ROMs (4 3/4 in.)  
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781680948752  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Travel.