(1965). Standard plans for highway bridges. Washington, D.C: U.S. Government Printing Office.
Παραπομπή Chicago StyleStandard Plans for Highway Bridges. Washington, D.C: U.S. Government Printing Office, 1965.
Παραπομπή MLAStandard Plans for Highway Bridges. Washington, D.C: U.S. Government Printing Office, 1965.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.