Black, J. (1981). Urban transport planning: Theory and practice. Johns Hopkins University Press.
Lua i Stíl Chicago (17ú heag.)Black, John. Urban Transport Planning: Theory and Practice. Baltimore: Johns Hopkins University Press, 1981.
Lua MLA (9ú heag.)Black, John. Urban Transport Planning: Theory and Practice. Johns Hopkins University Press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.