A degree of difference : the Open University of the United Kingdom / Naomi E. McIntosh, with Judith A. Calder and Betty Swift. McIntosh, Naomi E. Calder, Judith A., joint author. Swift, Betty, joint author. Open University. LC6581.G73 O63 1977 378.41 22 MCD Includes bibliographies and index. New York : Praeger, 1977. 1977. 1977 Text xviii, 320 p. : eng Praeger special studies in international economics and development