APA (7th ed.) Citation

Wittkower, R. (1998). Architectural principles: In the age of humanism. Academy Editions.

Chicago Style (17th ed.) Citation

Wittkower, Rudolf. Architectural Principles: In the Age of Humanism. New York,NY: Academy Editions, 1998.

MLA (8th ed.) Citation

Wittkower, Rudolf. Architectural Principles: In the Age of Humanism. Academy Editions, 1998.

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