Cita APA (7a ed.)

Pyles, T., & Algeo, J. (1993). The origins and development of the english language (4th. ed.). Harcourt College.

Cita Chicago Style (17a ed.)

Pyles, Thomas, y John Algeo. The Origins and Development of the English Language. 4th. ed. Philadelphia: Harcourt College, 1993.

Cita MLA (8a ed.)

Pyles, Thomas, y John Algeo. The Origins and Development of the English Language. 4th. ed. Harcourt College, 1993.