Cita APA (7a ed.)

Gwynne, H. A., & Ramos Oliveira, A. (1938). Controversy on Spain. United Editorial.

Cita Chicago Style (17a ed.)

Gwynne, H. A., y A. Ramos Oliveira. Controversy on Spain. London: United Editorial, 1938.

Cita MLA (9a ed.)

Gwynne, H. A., y A. Ramos Oliveira. Controversy on Spain. United Editorial, 1938.