Cita APA (7a ed.)
Loukotka, Č., & Wilbert, J. (1968). Classification of South American Indian Languages. Latin American Center, University of California, Los Angeles.
Cita Chicago Style (17a ed.)
Loukotka, Čestmír, y Johannes Wilbert. Classification of South American Indian Languages. Los Angeles, California: Latin American Center, University of California, Los Angeles, 1968.
Cita MLA (9a ed.)
Loukotka, Čestmír, y Johannes Wilbert. Classification of South American Indian Languages. Latin American Center, University of California, Los Angeles, 1968.
Precaución: Estas citas no son 100% exactas.