Cita APA (7a ed.)

American Association of State Highway Officials. (1961). Standard specifications for highway materials and methods of sampling and testing. American Association of State Highway Officials.

Cita Chicago Style (17a ed.)

American Association of State Highway Officials. Standard Specifications for Highway Materials and Methods of Sampling and Testing. Washington: American Association of State Highway Officials, 1961.

Cita MLA (9a ed.)

American Association of State Highway Officials. Standard Specifications for Highway Materials and Methods of Sampling and Testing. American Association of State Highway Officials, 1961.