APA (7th ed.) Citation

Nkrumah. Challenge of the Congo. International Publishers 1967.

Chicago Style (17th ed.) Citation

Nkrumah. Challenge of the Congo. New York: International Publishers 1967.

MLA (8th ed.) Citation

Nkrumah. Challenge of the Congo. International Publishers 1967.

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