Cita APA (7a ed.)

ATKINSON, W. C. (1960). A history of spain and portugal. penguin books.

Cita Chicago Style (17a ed.)

ATKINSON, William C. A History of Spain and Portugal. England: penguin books, 1960.

Cita MLA (9a ed.)

ATKINSON, William C. A History of Spain and Portugal. penguin books, 1960.