Foster, Dennis L. Sales and marketing for the travel professional / Dennis L. Foster. - Lake Forest, Ill. : Glencoe, c1991. - xv, 191 p. : ill. (some col.) ; 28 cm. - The Travel professional series . Includes index. ISBN: 0026808676 LCCN: 90043170 Subjects--Topical Terms: Travel agents--Marketing LC Class. No.: G154 Dewey Class. No.: 338.4/791/02373