APA (7th ed.) Citation

Klima, E. S., & Bellugi, U. (1979). The signs of language. Harvard University Press.

Chicago Style (17th ed.) Citation

Klima, Edward S., and Ursula Bellugi. The Signs of Language. Cambridge (Massachusetts) [etc.]: Harvard University Press, 1979.

MLA (9th ed.) Citation

Klima, Edward S., and Ursula Bellugi. The Signs of Language. Harvard University Press, 1979.