(1954). A policy on geometric design of rural highways. Washington, D.C: American Association of State Highway Officials.
Παραπομπή Chicago StyleA Policy On Geometric Design of Rural Highways. Washington, D.C: American Association of State Highway Officials, 1954.
Παραπομπή MLAA Policy On Geometric Design of Rural Highways. Washington, D.C: American Association of State Highway Officials, 1954.
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