–通过Internet Archive. Annual report of the Boston Transit Commission, for the year ending June 30, 1918. Boston Transit Commission. 1918 –通过Internet Archive
[2014-05-11]. (原始内容存档于2014-05-18). Must provide paid Internettransit services to at least 500 unique transit networks utilizing BGP on a global basis. Network
1992: 12 –通过Internet Archive. Tran Systems and Planners Collaborative. Evaluation of MBTA Paratransit and Accessible Fixed Route Transit Services: Final