(1935). Manual on uniform traffic control devices for streets and highways. Washington, D.C: [s.n.].
Παραπομπή Chicago StyleManual On Uniform Traffic Control Devices for Streets and Highways. Washington, D.C: [s.n.], 1935.
Παραπομπή MLAManual On Uniform Traffic Control Devices for Streets and Highways. Washington, D.C: [s.n.], 1935.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.