Cita APA (7a ed.)

Torlasco, R., & Frías, C. V. (1955). Our english class: An english course for secondary students (8ª ed.).

Cita Chicago Style (17a ed.)

Torlasco, Raúl, y Carlos V. Frías. Our English Class: An English Course for Secondary Students. 8ª ed. Buenos Aires, 1955.

Cita MLA (9a ed.)

Torlasco, Raúl, y Carlos V. Frías. Our English Class: An English Course for Secondary Students. 8ª ed. 1955.