APA (7th ed.) Citation

Duff, C., Mauri Codina, A., Barea, A., Moore, E., Pradas, G., & Carrillo, W. (1945). Freedom for Spain! International publishing company.

Chicago Style (17th ed.) Citation

Duff, Charles, Alfonso Mauri Codina, Arturo Barea, Edith Moore, García Pradas, and Wenceslao Carrillo. Freedom for Spain! London: International publishing company, 1945.

MLA (9th ed.) Citation

Duff, Charles, et al. Freedom for Spain! International publishing company, 1945.