Reference: Kondo and Kondo 1967

Kondo, Victor F. & Riena W. Kondo. 1967. Guahibo phonemes. In Viola G. Waterhouse (ed.), Phonemic systems of Colombian languages, 89–98. Norman: Summer Institute of Linguistics of the University of Oklahoma.

@incollection{kondo1967guahibo,
  address   = {Norman},
  author    = {Kondo, Victor F. and Kondo, Riena W.},
  booktitle = {Phonemic systems of Colombian languages},
  editor    = {Viola G. Waterhouse},
  pages     = {89–98},
  publisher = {Summer Institute of Linguistics of the University of Oklahoma},
  series    = {Summer Institute of Linguistics Publications in Linguistics and Related Fields},
  title     = {Guahibo phonemes},
  volume    = {14},
  year      = {1967}
}