Boldt, R. (2000). Information technology update for transit. National Academy Press.
Cita Chicago (17th ed.)Boldt, Roger. Information Technology Update for Transit. Washington, D.C: National Academy Press, 2000.
Cita MLA (9th ed.)Boldt, Roger. Information Technology Update for Transit. National Academy Press, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.