APA (7th ed.) Citation

Wittkower, R. (1960). The changing concept of proportion.

Chicago Style (17th ed.) Citation

Wittkower, Rudolf. The Changing Concept of Proportion. 1960.

MLA (9th ed.) Citation

Wittkower, Rudolf. The Changing Concept of Proportion. 1960.

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