Cita APA (7th ed.)

Greenberg, J. H. (1968). Universals of language (2a. ed.). The M.I.T Press.

Cita Chicago (17th ed.)

Greenberg, Joseph H. Universals of Language. 2a. ed. Cambridge: The M.I.T Press, 1968.

Cita MLA (9th ed.)

Greenberg, Joseph H. Universals of Language. 2a. ed. The M.I.T Press, 1968.