Santos, Buen <br/><br/>Principles of tourism II / Buen Santos, Ronald G. Manzano. --  -- Quezon City :  C & E Publishing,  2009.  <br/>ix, 144 p. :  ill. (some col.). ;  26 cm.  <br/><br/> Includes bibliographical references. <br/><br/><label>ISBN: </label>978-971-584-852-7 <br/><br/><label>Subjects--Topical Terms: </label><br/>Tourism.<br/>Tourism -- Philippines.