National Research Council (U.S.). Transportation Research Board. Section on public transportation. (1983). Private-sector role in public transportation: An overview. Transportation Research Board, National Academy of Sciences.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNational Research Council (U.S.). Transportation Research Board. Section on public transportation. Private-sector Role in Public Transportation: An Overview. Washington, D.C: Transportation Research Board, National Academy of Sciences, 1983.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিNational Research Council (U.S.). Transportation Research Board. Section on public transportation. Private-sector Role in Public Transportation: An Overview. Transportation Research Board, National Academy of Sciences, 1983.
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