Key, M. R. (1978). The history and distribution of the indigenous languages of Bolivia. Los Angeles : Estados Unidos: Anual Meeting of the American Anthropological Society.
Chicago-tyylinen lähdeviittausKey, Mary Ritchie. The History and Distribution of the Indigenous Languages of Bolivia. Los Angeles : Estados Unidos: Anual Meeting of the American Anthropological Society, 1978.
MLA-viiteKey, Mary Ritchie. The History and Distribution of the Indigenous Languages of Bolivia. Los Angeles : Estados Unidos: Anual Meeting of the American Anthropological Society, 1978.
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