APA (7th ed.) Citation

Ruhlen, M. (1976). A guide to the languages of the world. Stanford University.

Chicago Style (17th ed.) Citation

Ruhlen, Merritt. A Guide to the Languages of the World. Stanford: Stanford University, 1976.

MLA (8th ed.) Citation

Ruhlen, Merritt. A Guide to the Languages of the World. Stanford University, 1976.

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