American Association of State Highway and Transportation Officials. (2012). Standard Specifications for Transportation Materials and Methods of Sampling and Testing.: Part 1B: Specifications. (32nd Edition.). Washintong D.C: AASHTO.
Chicago Style CitationAmerican Association of State Highway and Transportation Officials. Standard Specifications for Transportation Materials and Methods of Sampling and Testing.: Part 1B: Specifications. 32nd Edition. Washintong D.C: AASHTO, 2012.
MLA CitationAmerican Association of State Highway and Transportation Officials. Standard Specifications for Transportation Materials and Methods of Sampling and Testing.: Part 1B: Specifications. 32nd Edition. Washintong D.C: AASHTO, 2012.
Warning: These citations may not always be 100% accurate.