(1992). AASHTO (American Association of State Highway and Transportation Officials) Guide for Design of Pavement Structures 1993. AASHTO.
Lua i Stíl Chicago (17ú heag.)AASHTO (American Association of State Highway and Transportation Officials) Guide for Design of Pavement Structures 1993. AASHTO, 1992.
Lua MLA (8ú heag.)AASHTO (American Association of State Highway and Transportation Officials) Guide for Design of Pavement Structures 1993. AASHTO, 1992.
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