Williamson, J. (1971). A various language: Perspectives on America dialects. Holt, Rinehart and Wiston.
Chicago-viite (17. p.)Williamson, Juantita. A Various Language: Perspectives on America Dialects. New York, Estados Unidos: Holt, Rinehart and Wiston, 1971.
MLA-viite (9. p.)Williamson, Juantita. A Various Language: Perspectives on America Dialects. Holt, Rinehart and Wiston, 1971.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.