Cita APA (7th ed.)

HOBBS, F. D. (1974). Traffic planning and engineering. Pergamon Press.

Cita Chicago (17th ed.)

HOBBS, F. D. Traffic Planning and Engineering. Oxfor: Pergamon Press, 1974.

Cita MLA (8th ed.)

HOBBS, F. D. Traffic Planning and Engineering. Pergamon Press, 1974.