American Association of State Highway Officials. (1973). Construction manual for highway bridges and incidental structures. American Association of State Highway Officials.
Citazione stile Chigago Style (17a edizione)American Association of State Highway Officials. Construction Manual for Highway Bridges and Incidental Structures. Washington, D.C: American Association of State Highway Officials, 1973.
Citatione MLA (9a ed.)American Association of State Highway Officials. Construction Manual for Highway Bridges and Incidental Structures. American Association of State Highway Officials, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.