Cita APA (7a ed.)

Livermore, H. V. (1971). The origins of Spain and Portugal. George Allen & Unwin.

Cita Chicago Style (17a ed.)

Livermore, H. V. The Origins of Spain and Portugal. London: George Allen & Unwin, 1971.

Cita MLA (9a ed.)

Livermore, H. V. The Origins of Spain and Portugal. George Allen & Unwin, 1971.