@phdthesis{gragson1989,
  author       = {Gragson, T.},
  howpublished = {University Microfilms, Ann Arbor, Mich.},
  key          = {Gragson (1989)},
  school       = {Department of Anthropology, Pennsylvania State University, College Station},
  title        = {Allocation of time to subsistence and settlement in a Ciri Khonome Pume village of the Llanos of Apure, Venezuela},
  year         = {1989}
}