APA (7th ed.) Citation

Viollet-le-Duc, E. (1977). An essay on the military architecture of the Middle Ages. Greenwood Press.

Chicago Style (17th ed.) Citation

Viollet-le-Duc, Eugène-Emmanuel. An Essay on the Military Architecture of the Middle Ages. Westport, Conn.: Greenwood Press, 1977.

MLA (9th ed.) Citation

Viollet-le-Duc, Eugène-Emmanuel. An Essay on the Military Architecture of the Middle Ages. Greenwood Press, 1977.