Fișier:William W. Campbell.pngDescriptionWilliam W. Campbell.png English: an Ohio politician named en:William Wildman Campbell Date 1917 published Source Winter, Nevin O (1917) A History
Fișier:Langs N.Amer.pngyokuts Bright, William (Ed.). (1992). International encyclopedia of linguistics (Vols. 1-4). New York: Oxford University Press. Campbell, Lyle. (1997)
Fișier:Wohngebiet Beothuk.pngLicense status: GNU FDL See also : Image:Territoire des Beothuks.png (French version) Campbell, Lyle. (1997). American Indian languages: The historical linguistics
Fișier:Takelman langs.pngSturtevant (1978-present), Campbell (1997:353-376). Takelman languages are in red. (cf. Image:Langs N.Amer.png) Campbell, Lyle. (1997). American Indian