Cruz, Zenaida L. Principles of tourism: part 1 / Zenaida Lansangan Cruz - Manila: Rex Book Store, c2013. - x, 326p.; ill. Includes bibliographical references and index ISBN: 978-971-23-6490-7 Subjects--Topical Terms: Tourist trade Dewey Class. No.: Fil. 338.4791 C957o 2013