O'Ballance, Edgar The secret war in the Sudan , 1955 - 1972 Edgar O`Ballance - Faber London 1977 1977 - 174 p. ; 22 cm. Bibliography : p. 9-10 Includes index ISBN: 0571107680 Subjects--Topical Terms: Sudan - History - 1956---DT LC Class. No.: DT157.67.O225 1977