Balée, William. 2003. Historical-Ecological influences on the word for Cacao in Ka'apor. Anthropological linguistics. 259–280. JSTOR.
@article{balee2003historical, author = {Balée, William}, journal = {Anthropological linguistics}, pages = {259–280}, publisher = {JSTOR}, title = {Historical-Ecological influences on the word for Cacao in Ka'apor}, year = {2003} }