@article{gifford1931,
  author  = {Gifford, E. W.},
  journal = {Bull. Bur. Amer. Ethn.},
  key     = {Gifford (1931)},
  pages   = {1-88},
  title   = {The Kamia of Imperial Valley},
  volume  = {97},
  year    = {1931}
}