Lua APA (7ú heag.)

National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Special Committee on Electronic Research in the Highway Field, & National Research Council (U.S.). Highway Research Board. Committee on Traffic Control Devices. (1968). Route guidance: 5 reports. Highway Research Board, National Research Council.

Lua i Stíl Chicago (17ú heag.)

National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Special Committee on Electronic Research in the Highway Field, agus National Research Council (U.S.). Highway Research Board. Committee on Traffic Control Devices. Route Guidance: 5 Reports. Washington, D.C: Highway Research Board, National Research Council, 1968.

Lua MLA (9ú heag.)

National Research Council (U.S.). Highway Research Board, et al. Route Guidance: 5 Reports. Highway Research Board, National Research Council, 1968.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.