Reference: Helberg Chávez 1984

Helberg Chávez, Heinrich Albert. 1984. Skizze einer Grammatik des Amarakueri. Universität Tübingen Ph.D. dissertation.

@book{chavez1984amarakaeri,
  author    = {Helberg Chávez, Heinrich Albert},
  publisher = {Universität Tübingen Ph.D. dissertation},
  title     = {Skizze einer Grammatik des Amarakueri},
  year      = {1984}
}