O'Sullivan, P. M. (1980). Transport policy: Geographic and economic planning aspects. Batsford Academic and Educational.
Cita Chicago (17th ed.)O'Sullivan, Patrick Michael. Transport Policy: Geographic and Economic Planning Aspects. London: Batsford Academic and Educational, 1980.
Cita MLA (9th ed.)O'Sullivan, Patrick Michael. Transport Policy: Geographic and Economic Planning Aspects. Batsford Academic and Educational, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.