Cita APA (7a ed.)

Swan, H. A., & Aldridge, B. i. (1981). English for yourself. Hulton educational publications.

Cita Chicago Style (17a ed.)

Swan, H. A., y Barney ilustrador Aldridge. English for Yourself. Amersham: Hulton educational publications, 1981.

Cita MLA (9a ed.)

Swan, H. A., y Barney ilustrador Aldridge. English for Yourself. Hulton educational publications, 1981.