Backus, Charles, 1947- The Nan-chao kingdom and Tang China's southwestern frontier / Charles Backus - London : Cambridge University Press, c1981 - xii, 224 p. : maps ; 24 cm. - Cambridge studies in Chinese history, literatureand institutions . Includes bibliographical references and index ISBN: 052122733X : PND 25.00 Subjects--Geographic Terms: China--History--Tang dynasty, 618-907China--BoundariesYunnan Sheng (China)--History Dewey Class. No.: 951.01