American Association of State Highway Officials. (1973). Construction manual for highway bridges and incidental structures. American Association of State Highway Officials.
Tohutoru Kātū Chicago (17th ed.)American Association of State Highway Officials. Construction Manual for Highway Bridges and Incidental Structures. Washington, D.C: American Association of State Highway Officials, 1973.
Tohutoro MLA (9th ed.)American Association of State Highway Officials. Construction Manual for Highway Bridges and Incidental Structures. American Association of State Highway Officials, 1973.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.