@incollection{cooper1946a,
  address   = {Washington, D.C.},
  author    = {Cooper, J. M.},
  booktitle = {The Marginal Tribes},
  editor    = {Steward, J. H.},
  key       = {Cooper (1946a)},
  number    = {Bureau of American Ethnology Bulletin No. 143},
  pages     = {81-106},
  publisher = {Smithsonian Institution},
  series    = {Handbook of South American Indians},
  title     = {The Yahgan},
  url       = {http://library.si.edu/digital-library/book/bulletin14311946smit},
  volume    = {1},
  year      = {1946}
}