United States. Federal Transit Administration, Transit Cooperative Research Program, Transit Development Corporation, National Research Council (U.S.). Transportation Research Board, & Science Applications International Corporation. (2006). Public transportation security. Transportation Research Board.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিUnited States. Federal Transit Administration, Transit Cooperative Research Program, Transit Development Corporation, National Research Council (U.S.). Transportation Research Board, এবং Science Applications International Corporation. Public Transportation Security. Washington, D.C: Transportation Research Board, 2006.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিUnited States. Federal Transit Administration, et al. Public Transportation Security. Transportation Research Board, 2006.