De Kadt Emanuel Tourism Passport to development - Washington D C Oxford USA 1979 - "xviii, 360p." cm. - World Bank Publicaiton. United Nations Educational Scientific and Cultural Organizaiton Publicaiton . Standard No.: 110614 Source: Reference Collections Subjects--Topical Terms: Travel Industry Dewey Class. No.: "X9(U8).1(X).N7, L9/UN"