APA (7th ed.) Citation

Noon, J. A. (1944). Labor problems of Africa. University of Pennsylvania press, the University museum.

Chicago Style (17th ed.) Citation

Noon, John A. Labor Problems of Africa. Philadelphia: University of Pennsylvania press, the University museum, 1944.

MLA (8th ed.) Citation

Noon, John A. Labor Problems of Africa. University of Pennsylvania press, the University museum, 1944.