Worsdall, Vivien Tourism : Managers, Agents, and tha Agency / Vivien Worsdall. - E. U. A. : Macmillan publishing, 1976 - 117 p. : il. ; 23 cm. - (Macmillan Career English) . ISBN: 0029737907 Subjects--Topical Terms: Ingles--TurismoVocabulario LC Class. No.: PE1928 / W67 1976