APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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