APA (7th ed.) Citation

United States Tariff Commission. (1939). Incandescent electric lamps. [s.n.].

Chicago Style (17th ed.) Citation

United States Tariff Commission. Incandescent Electric Lamps. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States Tariff Commission. Incandescent Electric Lamps. [s.n.], 1939.

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