Cita APA (7a ed.)

Szulc, T., Manning, J., Oliva, M. d., & Jarrell, J. (1972). Portrait of Spain. American Heritage Press.

Cita Chicago Style (17a ed.)

Szulc, Tad, Jack Manning, Mari de Oliva, y Jill Jarrell. Portrait of Spain. New York [etc.]: American Heritage Press, 1972.

Cita MLA (9a ed.)

Szulc, Tad, et al. Portrait of Spain. American Heritage Press, 1972.