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. Londres, Inglaterra: Harvard University Press, 1979.
MLA (9th ed.) Citation
Klima, Edward S., and Ursula Bellugi. The Signs of Language. Harvard University Press, 1979.
Warning: These citations may not always be 100% accurate.