Metropolitan Transit Authority (Boston, Mass.)

• An act providing for the extension of rapid transit facilities in the city of Cambridge, the town of Arlington, the town of Lexington, and the town of Bedford
• MTA fare guide
• Report of the Commissioner ... recommending legislation to eliminate from the cost of service of the Metropolitan Transit Authority certain fixed charges ... June 6, 1951
• Report of the Trustees ...
• System route map
• [Chap. 544], 1947
• [Metropolitan Boston subway maps