Raper, C. L., & Hadley, A. T. (1912). Railway transportation: A history of its economics and of its relation to the state, based, with the author's permission, upon President Hadley's "Railroad transportation: its history and its laws". G.P. Putnam's sons.
Chicago Style (17th ed.) CitationRaper, Charles Lee, and Arthur Twining Hadley. Railway Transportation: A History of Its Economics and of Its Relation to the State, Based, with the Author's Permission, upon President Hadley's "Railroad Transportation: Its History and Its Laws". New York, London: G.P. Putnam's sons, 1912.
MLA (9th ed.) CitationRaper, Charles Lee, and Arthur Twining Hadley. Railway Transportation: A History of Its Economics and of Its Relation to the State, Based, with the Author's Permission, upon President Hadley's "Railroad Transportation: Its History and Its Laws". G.P. Putnam's sons, 1912.