APA (7th ed.) Citation

United States. Federal Power Commission. (1939). Production of electric energy in the United States, Dec. 1939 and Jan. 1940. [s.n.].

Chicago Style (17th ed.) Citation

United States. Federal Power Commission. Production of Electric Energy in the United States, Dec. 1939 and Jan. 1940. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Federal Power Commission. Production of Electric Energy in the United States, Dec. 1939 and Jan. 1940. [s.n.], 1939.