Singh, H. (1985). Africa : an economic and political study: An economic and political study. UDH Publishers.
Chicago Style (17th ed.) ZitazioaSingh, Harjinder. Africa : An Economic and Political Study: An Economic and Political Study. Delhi: UDH Publishers, 1985.
MLA (9th ed.) ZitazioaSingh, Harjinder. Africa : An Economic and Political Study: An Economic and Political Study. UDH Publishers, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.