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• Organisation for Economic Co-operation and development (OECD.) 'Tourism Policy and International Tourism in O.E.C.D. Member countries, 1979" O.E.CD., Paris, 1979.
• World Tourism Organisation (W.T.O.), "Guidelines for the Collection and Presentation of International Travel Statistics", W.T-O. , Madrid, 1974.
• G. Young, 'Tourism-Blessing or Blight? i', Pelican, London, 1973. Robert Cleverdon, 'The Economic and Social Impact of International Tourism on Developing Countries", E.I./J., Special Report No. 60, London, May 1979. S.N. Chib, "Tourism and The Third World", Third World Ouarterly, Vel.ll,
• O.E.C.D., "The OECD Observer", No. 101 Paris, November 1979. Micheal Dower, "Tourism and the Environment", Draft Paper for U.N. E.P. 's State of the Environment Message 1979, Dartington Amenity Research Trust, London, August 19780