APA (7e ed.) Bronvermelding

United States. Federal Highway Administration & United States. National Advisory Committee on Uniform Traffic Control Devices. (1971). Manual on uniform traffic control devices for streets and highways. s. n.

Chicago (17e ed.) Bronvermelding

United States. Federal Highway Administration en United States. National Advisory Committee on Uniform Traffic Control Devices. Manual on Uniform Traffic Control Devices for Streets and Highways. Washington, D. C: s. n, 1971.

MLA (9e ed.) Bronvermelding

United States. Federal Highway Administration en United States. National Advisory Committee on Uniform Traffic Control Devices. Manual on Uniform Traffic Control Devices for Streets and Highways. s. n, 1971.