Hoijer 1956

Hoijer, Harry. 1956. The chronology of the Athapaskan languages. International Journal of American Linguistics 22. 219-232.

@misc{929,
  author = {Hoijer, Harry},
  title  = {The chronology of the Athapaskan languages. International Journal of American Linguistics 22. 219-232.},
  year   = {1956}
}