American Association of State Highway Officials. (1966). A policy on geometric design of rural highways, 1965. AASHO.
Citazione stile Chigago Style (17a edizione)American Association of State Highway Officials. A Policy on Geometric Design of Rural Highways, 1965. Washington, D.C.: AASHO, 1966.
Citatione MLA (8a ed.)American Association of State Highway Officials. A Policy on Geometric Design of Rural Highways, 1965. AASHO, 1966.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.