United States. Interstate Commerce Commission. (1912). Classification of operating revenues and operating expenses of sleeping car companies as prescribed by Interstate Commerce Commission in accordance with Section 20 of Act to Regulate Commerce; 1st issue, effective on July 1, 1910. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Interstate Commerce Commission. Classification of Operating Revenues and Operating Expenses of Sleeping Car Companies as Prescribed by Interstate Commerce Commission in Accordance with Section 20 of Act to Regulate Commerce; 1st Issue, Effective on July 1, 1910. Washington: U.S. GPO, 1912.
MLA (9th ed.) CitationUnited States. Interstate Commerce Commission. Classification of Operating Revenues and Operating Expenses of Sleeping Car Companies as Prescribed by Interstate Commerce Commission in Accordance with Section 20 of Act to Regulate Commerce; 1st Issue, Effective on July 1, 1910. U.S. GPO, 1912.