1970. Fiftieth annual report. Federal Power Commission
MLA
1970. Fiftieth Annual Report. Federal Power Commission. House Document / 92nd Congress, 1st Session. House. Washington, DC, 1971
APA, 7th edition
(1971). 1970. Fiftieth annual report. Federal Power Commission. House document / 92nd Congress, 1st session. House. Washington, DC
Chicago, 17th edition
1970. Fiftieth annual report. Federal Power Commission. House document / 92nd Congress, 1st session. House. Washington, DC, 1971