Board, 1. H. R. (1959). Trip generation and urban freeway planning. Washington DC: Highway Research Board.
Lua i Stíl Chicago (17ú heag.)Board, 130 Highway Research. Trip Generation and Urban Freeway Planning. Washington DC: Highway Research Board, 1959.
Lua MLA (9ú heag.)Board, 130 Highway Research. Trip Generation and Urban Freeway Planning. Washington DC: Highway Research Board, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.