APA (7th ed.) Citation

Funck-Brentano, F. (1967). The Middle Ages. AMS Press.

Chicago Style (17th ed.) Citation

Funck-Brentano, Frantz. The Middle Ages. New York: AMS Press, 1967.

MLA (9th ed.) Citation

Funck-Brentano, Frantz. The Middle Ages. AMS Press, 1967.

Warning: These citations may not always be 100% accurate.