Cita APA (7a ed.)

Clayton, K. M., & Kormoss, I. B. F. (1971). Western Europe. University Press.

Cita Chicago Style (17a ed.)

Clayton, Keith M., y I. B. F. Kormoss. Western Europe. Oxford: University Press, 1971.

Cita MLA (9a ed.)

Clayton, Keith M., y I. B. F. Kormoss. Western Europe. University Press, 1971.