APA (7th ed.) Citation

Rosen, D., & Held, J. S. (1951). A Rubens discovery in Chicago.

Chicago Style (17th ed.) Citation

Rosen, David, and Julius S. Held. A Rubens Discovery in Chicago. 1951.

MLA (9th ed.) Citation

Rosen, David, and Julius S. Held. A Rubens Discovery in Chicago. 1951.

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