Columbia subject headings:
Electric power--United States--Statistics--Periodicals.
Electric utilities--United States--Statistics--Periodicals.
Harvard subject headings:
Electric power--United States--Statistics--Periodicals.
Electric utilities--United States--Statistics--Periodicals.
Princeton subject headings:
Electric power--United States--Statistics--Periodicals.
Electric utilities--United States--Statistics--Periodicals.
Periodicals.
Statistics.