APA
Lees F. A., Brooks H. C., . (1977). The economic and political development of the Sudan. London: Macmillan.
Chicago
Lees Francis A, Brooks Hugh C, . 1977. The economic and political development of the Sudan. London: Macmillan.
Harvard
Lees F. A., Brooks H. C., . (1977). The economic and political development of the Sudan. London: Macmillan.
MLA
Lees Francis A, Brooks Hugh C, . The economic and political development of the Sudan. London: Macmillan. 1977.