American Association of State Highway and Transportation Officials Primary Author mixed material bibliography Westport, Conn. American Association of State Highway and Transportation Officials 2005 en English

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v. : ill. ; 28 cm. Road materials--Standards 625.8021873 1560513217 PERPUSTAKAAN UMSU Universitas Muhammadiyah Sumatera Utara 625.8021873/AAS/- 06000081 AASHTO_provisional_standards.jpg.jpg 11107 2013-05-20 18:16:22 2013-05-22 20:47:52 machine generated