American Association of State Highway Officials. (1966). Standard specifications for highway materials and methods of sampling and testing (9th ed.). A.A.S.H.O..
Chicago Style (17th ed.) CitationAmerican Association of State Highway Officials. Standard Specifications for Highway Materials and Methods of Sampling and Testing. 9th ed. Washington, D.C.: A.A.S.H.O., 1966.
MLA (8th ed.) CitationAmerican Association of State Highway Officials. Standard Specifications for Highway Materials and Methods of Sampling and Testing. 9th ed. A.A.S.H.O., 1966.
Warning: These citations may not always be 100% accurate.