Cruz, Zenaida L. <br/><br/>Principles of tourism:  part I Zenaida L. Cruz.  -- Manila, Philippines:  Rex Book Store.,  1991. <br/>viii, 182 p.;  22 cm.  - Tourism. .<br/><br/><label>ISBN: </label>971-23-0908-8 <br/><br/><label>Dewey Class. No.: </label>Fil 338. 4791 C889 1991