Reference: Saxton 1963

Saxton, Dean. 1963. Papago phonemes. International Journal of American Linguistics 29. 29–35.

@article{saxton1963papago,
  author  = {Saxton, Dean},
  journal = {International Journal of American Linguistics},
  pages   = {29–35},
  title   = {Papago phonemes},
  volume  = {29},
  year    = {1963}
}