Payne, Doris L. & Thomas E. Payne. 1990. Yagua. In Desmond C. Derbyshire and Geoffrey K. Pullum (eds.), Handbook of Amazonian Languages, 249–474. Berlin/New York: Mouton de Gruyter.
@incollection{payne1990yagua, address = {Berlin/New York}, author = {Doris L. Payne and Thomas E. Payne}, booktitle = {Handbook of Amazonian Languages}, editor = {Desmond C. Derbyshire and Geoffrey K. Pullum}, pages = {249–474}, publisher = {Mouton de Gruyter}, title = {Yagua}, volume = {II}, year = {1990} }