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.