Cita APA (7a ed.)

Elton, G. R. (1984). Political history: Principles and practice. Garland.

Cita Chicago Style (17a ed.)

Elton, G. R. Political History: Principles and Practice. New York [etc.]: Garland, 1984.

Cita MLA (9a ed.)

Elton, G. R. Political History: Principles and Practice. Garland, 1984.