Cita APA (7th ed.)

Small, K. A. (1992). Urban transportation economics. Harwood Academic Publishers.

Cita Chicago (17th ed.)

Small, Kenneth A. Urban Transportation Economics. Chur [Switzerland], Reading: Harwood Academic Publishers, 1992.

Cita MLA (9th ed.)

Small, Kenneth A. Urban Transportation Economics. Harwood Academic Publishers, 1992.