Payne, Doris L. and Payne, Thomas E. 1990. Yagua. In Derbyshire, Desmond C. and Pullum, Geoffrey K. (eds.), Handbook of Amazonian Languages, 249–474.
@incollection{nicholsdiversity-Payne1990, author = {Payne, Doris L. and Payne, Thomas E.}, booktitle = {Handbook of Amazonian Languages}, editor = {Derbyshire, Desmond C. and Pullum, Geoffrey K.}, pages = {249–474}, title = {Yagua}, year = {1990} }