APA (7th ed.) Citation

Ward Leonard Electric Co., Mount Vernon, N.Y. (1923). Theatre lighting, past and present. Ward Leonard Electric Company.

Chicago Style (17th ed.) Citation

Ward Leonard Electric Co., Mount Vernon, N.Y. Theatre Lighting, Past and Present. Mount Vernon, N.Y.: Ward Leonard Electric Company, 1923.

MLA (9th ed.) Citation

Ward Leonard Electric Co., Mount Vernon, N.Y. Theatre Lighting, Past and Present. Ward Leonard Electric Company, 1923.