Beaumont, Peter, 1940- Environmental management and development in drylands / Peter Beau mont. - London: Routledge, 1989. - xix, 505 p. : ill., maps ; 23 cm. - The natural environment: problems & management series . Includes bibliographical references and index. Subjects--Topical Terms: Desert resources development.Environmental management. Dewey Class. No.: 333.73