Cita APA (7a ed.)

Guillemain, B. (1960). The early Middle Ages. Hawthorn Books, Publishers.

Cita Chicago Style (17a ed.)

Guillemain, Bernard. The Early Middle Ages. New York: Hawthorn Books, Publishers, 1960.

Cita MLA (9a ed.)

Guillemain, Bernard. The Early Middle Ages. Hawthorn Books, Publishers, 1960.