Cook, Roy A. Tourism : the business of travel / Roy A. Cook, Laura J. Yale, Joseph J. Marqua. - 3rd ed. - New Delhi. : Dorling Kindersley, c2006. - xvii, 489 p. : ill. ; 28 cm. Includes bibliographical references and index. ISBN: 9788131714874 LCCN: 00066579 Subjects--Topical Terms: Tourism. LC Class. No.: G155.A1 / COO