APA (7th ed.) Citation

Ehrman, H. A. (1929). Use of color in hospitals. [publisher not identified].

Chicago Style (17th ed.) Citation

Ehrman, Herbert A. Use of Color in Hospitals. Washington, D.C.: [publisher not identified], 1929.

MLA (9th ed.) Citation

Ehrman, Herbert A. Use of Color in Hospitals. [publisher not identified], 1929.