Reference: Payne and Payne 1990

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}
}