American Association of State Highway Officials. (1931). Standard specifications for highway bridges. s.n.
Chicagoスタイル(17版)引用形式American Association of State Highway Officials. Standard Specifications for Highway Bridges. Washington: s.n, 1931.
MLA(9版)引用形式American Association of State Highway Officials. Standard Specifications for Highway Bridges. s.n, 1931.
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