APA (7th ed.) Citation

Kaufmann, E. (1939). Etienne-Louis Boullée.

Chicago Style (17th ed.) Citation

Kaufmann, Emil. Etienne-Louis Boullée. 1939.

MLA (9th ed.) Citation

Kaufmann, Emil. Etienne-Louis Boullée. 1939.

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