Oduho, Joseph. The problem of the Southern Sudan / [by] Joseph Oduho and William Deng ; with an introduction by Richard Gray. - London : Oxford University Press, 1963. - 60 p. : ill. ; 19 cm. Issued under the auspices of the Institute of Race Relations, London . Includes bibliographical references. Subjects--Geographic Terms: Sudan -- History. Dewey Class. No.: 962.4