Cita APA (7th ed.)
Klima, E. S., & Bellugi, U. (1979). The signs of language. Harvard University Press.
Cita Chicago (17th ed.)
Klima, Edward S., i Ursula Bellugi. The Signs of Language. Londres, Inglaterra: Harvard University Press, 1979.
Cita MLA (9th ed.)
Klima, Edward S., i Ursula Bellugi. The Signs of Language. Harvard University Press, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.