Cundill, M. A., & Watts, P. F. (1973). Bus boarding and alighting times. Public Transport Division, Transport Operations Dept., Transport and Road Research Laboratory Available through the National Technical Information Service].
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Cundill, M. A., và P. F. Watts. Bus Boarding and Alighting Times. Crowthorne, Berkshire, [Springfield, Va: Public Transport Division, Transport Operations Dept., Transport and Road Research Laboratory Available through the National Technical Information Service], 1973.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Cundill, M. A., và P. F. Watts. Bus Boarding and Alighting Times. Public Transport Division, Transport Operations Dept., Transport and Road Research Laboratory Available through the National Technical Information Service], 1973.