Lua APA (7ú heag.)

United States. Federal Highway Administration. (1977). Esthetics and visual resource management for highways. s.n..

Lua i Stíl Chicago (17ú heag.)

United States. Federal Highway Administration. Esthetics and Visual Resource Management for Highways. [United States: s.n., 1977.

Lua MLA (8ú heag.)

United States. Federal Highway Administration. Esthetics and Visual Resource Management for Highways. s.n., 1977.

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