Gwilliam, K. M. (1964). Transport and Public Policy. Allen& Unwin.
Cita Chicago (17th ed.)Gwilliam, K. M. Transport and Public Policy. London: Allen& Unwin, 1964.
Cita MLA (9th ed.)Gwilliam, K. M. Transport and Public Policy. Allen& Unwin, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.