Reference: Hill and Zepeda 1992

Hill, Jane H & Ofelia Zepeda. 1992. Derived words in Tohono O'odham. International Journal of American Linguistics 58(4). 355–404. University of Chicago Press.

@article{hill1992derived,
  author    = {Hill, Jane H and Zepeda, Ofelia},
  journal   = {International Journal of American Linguistics},
  number    = {4},
  pages     = {355–404},
  publisher = {University of Chicago Press},
  title     = {Derived words in Tohono O'odham},
  volume    = {58},
  year      = {1992}
}