แม่แบบ:R:CSAIL
Čestmír Loukotka, Johannes Wilbert (editor), Classification of South American Indian Languages (1968, Los Angeles: Latin American Studies Center, University of California), page(s) {{{1}}}
Čestmír Loukotka, Johannes Wilbert (editor), Classification of South American Indian Languages (1968, Los Angeles: Latin American Studies Center, University of California), page(s) {{{1}}}