Klima, Edward and Bellugi, Ursula. 1979. The Signs of Language. Cambridge, MA: Harvard University Press.
@book{Klima-and-Bellugi-1979,
address = {Cambridge, MA},
author = {Klima, Edward and Bellugi, Ursula},
publisher = {Harvard University Press},
title = {The Signs of Language},
year = {1979}
}