Cita APA (7a ed.)

Engel, L. K., & Blumberg, R. (1974). Spain and Portugal. Corneston Library.

Cita Chicago Style (17a ed.)

Engel, Lyle Kenyon, y Rhoda Blumberg. Spain and Portugal. New York: Corneston Library, 1974.

Cita MLA (9a ed.)

Engel, Lyle Kenyon, y Rhoda Blumberg. Spain and Portugal. Corneston Library, 1974.