APA-referens (7:e uppl.)

Algeo, J., & Pyles, T. (2005). The origins and development of the English language (5th ed.). Thomson/Wadsworth.

Chicago-referens (17:e uppl.)

Algeo, John, och Thomas Pyles. The Origins and Development of the English Language. 5th ed. Boston: Thomson/Wadsworth, 2005.

MLA-referens (9:e uppl.)

Algeo, John, och Thomas Pyles. The Origins and Development of the English Language. 5th ed. Thomson/Wadsworth, 2005.