APA (7th ed.) Zitazioa

Greenberg, J. H. (1966). Universals of language. MITPR.

Chicago Style (17th ed.) Zitazioa

Greenberg, Joseph H. Universals of Language. NewYork: MITPR, 1966.

MLA (9th ed.) Zitazioa

Greenberg, Joseph H. Universals of Language. MITPR, 1966.