Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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