APA (7th ed.) Citation

O'Ballance, E. (1977). The secret war in the Sudan, 1955-1972. Archon Books.

Chicago Style (17th ed.) Citation

O'Ballance, Edgar. The Secret War in the Sudan, 1955-1972. Hamden, Conn.: Archon Books, 1977.

MLA (9th ed.) Citation

O'Ballance, Edgar. The Secret War in the Sudan, 1955-1972. Archon Books, 1977.

Warning: These citations may not always be 100% accurate.