APA (7th ed.) Citation

Wittkower, R. (1971). Architectural principles in the age of humanism. W. W. Norton.

Chicago Style (17th ed.) Citation

Wittkower, Rudolf. Architectural Principles in the Age of Humanism. New York: W. W. Norton, 1971.

MLA (9th ed.) Citation

Wittkower, Rudolf. Architectural Principles in the Age of Humanism. W. W. Norton, 1971.

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