American Public Works Association. Street Maintenance Committee. (1963). Street and urban road maintenance. Public Administration Service.
Lua i Stíl Chicago (17ú heag.)American Public Works Association. Street Maintenance Committee. Street and Urban Road Maintenance. Chicago: Public Administration Service, 1963.
Lua MLA (9ú heag.)American Public Works Association. Street Maintenance Committee. Street and Urban Road Maintenance. Public Administration Service, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.