MacDorman, L. C. (1986). Use of part-time operators. Transportation Research Board, National Research Council.
Cita Chicago (17th ed.)MacDorman, Littleton C. Use of Part-time Operators. Washington, D.C: Transportation Research Board, National Research Council, 1986.
Cita MLA (9th ed.)MacDorman, Littleton C. Use of Part-time Operators. Transportation Research Board, National Research Council, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.