Cita APA (7a ed.)

Preston, P. (1984). Revolution and war in Spain, 1931-1939. Methuen.

Cita Chicago Style (17a ed.)

Preston, Paul. Revolution and War in Spain, 1931-1939. London [etc.]: Methuen, 1984.

Cita MLA (9a ed.)

Preston, Paul. Revolution and War in Spain, 1931-1939. Methuen, 1984.