Kakumasu, James. 1986. Urubu-Kaapor. In Derbyshire, Desmond C. and Pullum, Geoffrey K. (eds.), Handbook of Amazonian Languages, 326-403. Berlin: Mouton de Gruyter.
@incollection{sinnemakizeromarking-Kakumasu1986, address = {Berlin}, author = {Kakumasu, James}, booktitle = {Handbook of Amazonian Languages}, editor = {Derbyshire, Desmond C. and Pullum, Geoffrey K.}, pages = {326-403}, publisher = {Mouton de Gruyter}, title = {Urubu-Kaapor}, volume = {1}, year = {1986} }