APA (7th ed.) Citation

Katzner, K. (1975). The languages of the world. Funk & Wagnalls.

Chicago Style (17th ed.) Citation

Katzner, Kenneth. The Languages of the World. New York,: Funk & Wagnalls, 1975.

MLA (8th ed.) Citation

Katzner, Kenneth. The Languages of the World. Funk & Wagnalls, 1975.

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