Cita APA (7a ed.)

Brentano, R. (1966). The Early Middle Ages 500-1000. Free Press.

Cita Chicago Style (17a ed.)

Brentano, Robert. The Early Middle Ages 500-1000. New York: Free Press, 1966.

Cita MLA (9a ed.)

Brentano, Robert. The Early Middle Ages 500-1000. Free Press, 1966.