@article{wilbert1958a,
  address = {Caracas},
  author  = {Wilbert, J.},
  journal = {Mem. Soc. Cienc. Nat. LaSalle},
  key     = {Wilbert (1958a)},
  pages   = {155-183},
  title   = {Datos antropologicos de los Indios Piaroa},
  volume  = {18},
  year    = {1958}
}