Collin, Verite' Reily Becoming a tour guide: principles of guiding and site interpretation - 1st ed. - Columbia, MD, U.S.A. : Cengage, 2000 - 128 tr. ; 29 cm. ISBN: 9780826447883 Subjects--Topical Terms: Tourism--Vocational guidance. Dewey Class. No.: 338.4791023 / B398