Principles and ethics of tour guiding 
Cruz, Zenaida Lansangan. 
 - Updated edition. 
 -  Rex Book Store :  2008 
 - vii, 164 pages 
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<br/><br/><label>ISBN: </label>978-9-71235100-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tour guides (persons) -- Handbooks, manuals, etc.
<br/><br/><label>Dewey Class. No.: </label>F 338.4791 C955 2008