Hughes-Cromwick, P. (2006). Executive summary: Cost benefit analysis of providing non-emergency medical transportation. Transportation Research Board.
Cita Chicago (17th ed.)Hughes-Cromwick, Paul. Executive Summary: Cost Benefit Analysis of Providing Non-emergency Medical Transportation. [Washington, D.C.]: Transportation Research Board, 2006.
Cita MLA (9th ed.)Hughes-Cromwick, Paul. Executive Summary: Cost Benefit Analysis of Providing Non-emergency Medical Transportation. Transportation Research Board, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.