Uniform System of Accounts for Telephone Companies, Classes "A" and "B", as Prescribed by the State Public Utilities Commission of Illinois in Accordance with Section 11 of the Act to Provide for the Regulation of Public Utilities: Approved June 30, 1913. First Issue, Effective on July 1, 1914
Illinois. Public Utilities Commission
Jan 1914 · Illinois state journal Company, State printers