. . "Uniform system of accounts for mutual service companies and subsidiary service companies : under the Public utility holding company act of 1935 adopted May 12, 1936 to be effective August 1, 1936, amended February 2, 1979 to be effective January 1, 1980" . . . . . . "Uniform system of accounts for mutual service companies and subsidiary service companies"@en . . . . "Uniform system of accounts for mutual service companies and subsidiary service companies : under the Public utility holding company act of 1935, adopted May 12, 1936, to be effective August 1, 1936, amended February 2, 1979, to be effective January 1, 1980"@en . . . . . . . .