Directory of electric utilities in the United States : 1940 ; Federal power commission, Washington, F.P.C. S-8.
MLA
Directory of Electric Utilities In the United States: 1940 ; Federal Power Commission, Washington, F.p.c. S-8. [Washington: U. S. Govt. print. off., 1940
APA, 7th edition
(1940). Directory of electric utilities in the United States: 1940 ; Federal power commission, Washington, F.P.C. S-8. [Washington: U. S. Govt. print. off
Chicago, 17th edition
Directory of electric utilities in the United States: 1940 ; Federal power commission, Washington, F.P.C. S-8. [Washington: U. S. Govt. print. off., 1940