Παραπομπή APA

Algeo, J., & Pyles, T. (2010). the origins and development of the english language (6.). Cengage Learning.

Παραπομπή Chicago Style

Algeo, John, και Thomas Pyles. The Origins and Development of the English Language. 6. Andover: Cengage Learning, 2010.

Παραπομπή MLA

Algeo, John, και Thomas Pyles. The Origins and Development of the English Language. 6. Cengage Learning, 2010.