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-Zitierstil (17. Ausg.)American 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-Zitierstil (8. Ausg.)American Association of State Highway Officials. Standard Specifications for Highway Materials and Methods of Sampling and Testing. 9th ed. A.A.S.H.O., 1966.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.