APA (7th ed.) Citation

Fedden, R. (1950). Crusader castles: A brief study in the military architecture of the crusades (1. publ.). Art & Technics.

Chicago Style (17th ed.) Citation

Fedden, Robin. Crusader Castles: A Brief Study in the Military Architecture of the Crusades. 1. publ. London: Art & Technics, 1950.

MLA (9th ed.) Citation

Fedden, Robin. Crusader Castles: A Brief Study in the Military Architecture of the Crusades. 1. publ. Art & Technics, 1950.