Cita APA (7a ed.)

Atkinson, W. C. (1960). A History of Spain & Portugal. Penguin Books.

Cita Chicago Style (17a ed.)

Atkinson, William C. A History of Spain & Portugal. Harmondsworth, Middlesex: Penguin Books, 1960.

Cita MLA (9a ed.)

Atkinson, William C. A History of Spain & Portugal. Penguin Books, 1960.