Barke, Michael The third world : diversity change and Greg O'Hare / Michael Barke - Edinburgh : Oliver and boyd, 1984 - vi, 296 p. : , ill.,charts, maps ; 23 cm. - Conceptual frame works in geography . Includes bibliographical references and index ISBN: 0050035258 Subjects--Topical Terms: EcotourismUrban economicsResource allocation Subjects--Geographic Terms: Developing countries--Economic policy Dewey Class. No.: 330.9