Cita APA (7a ed.)

Koffman, D. (2004). Operational experiences with flexible transit services. Transportation Research Board.

Cita Chicago Style (17a ed.)

Koffman, David. Operational Experiences with Flexible Transit Services. Washington, D.C: Transportation Research Board, 2004.

Cita MLA (9a ed.)

Koffman, David. Operational Experiences with Flexible Transit Services. Transportation Research Board, 2004.