APA (7th ed.) Citation

Duffy, J., & Manners, R. A. (1961). Africa speaks. Van Nostrand.

Chicago Style (17th ed.) Citation

Duffy, James, and Robert Alan Manners. Africa Speaks. Princeton, N. J: Van Nostrand, 1961.

MLA (9th ed.) Citation

Duffy, James, and Robert Alan Manners. Africa Speaks. Van Nostrand, 1961.

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