Britain), T. a. R. R. L. (. (19). Dial-a-bus in Harlow [kasetvideo]. Crowthorne, Eng. : TRRL Film Library.
Cita Chicago (17th ed.)Britain), Transport and Road Research Laboratory (Great. Dial-a-bus in Harlow [kasetvideo]. Crowthorne, Eng. : TRRL Film Library, 19.
Cita MLA (9th ed.)Britain), Transport and Road Research Laboratory (Great. Dial-a-bus in Harlow [kasetvideo]. Crowthorne, Eng. : TRRL Film Library, 19.
Atenció: Aquestes cites poden no estar 100% correctes.