Cita APA (7th ed.)
Loukotka, Č., & Wilbert, J. (1968). Classification of South American Indian Languages. Latin American Center, University of California, Los Angeles.
Cita Chicago (17th ed.)
Loukotka, Čestmír, i Johannes Wilbert. Classification of South American Indian Languages. Los Angeles, California: Latin American Center, University of California, Los Angeles, 1968.
Cita MLA (9th ed.)
Loukotka, Čestmír, i Johannes Wilbert. Classification of South American Indian Languages. Latin American Center, University of California, Los Angeles, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.