Cita APA (7th ed.)

National Joint Committee on Uniform Traffic Control Devices. (1961). Manual on uniform traffic control devices for streets and highways. Bureau of Public Roads.

Cita Chicago (17th ed.)

National Joint Committee on Uniform Traffic Control Devices. Manual on Uniform Traffic Control Devices for Streets and Highways. Wash.: Bureau of Public Roads, 1961.

Cita MLA (8th ed.)

National Joint Committee on Uniform Traffic Control Devices. Manual on Uniform Traffic Control Devices for Streets and Highways. Bureau of Public Roads, 1961.