Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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