Cita APA (7a ed.)

American Society for Testing and Materials. (2000). Standard test methods for softening point of bitumen (ring-and-ball apparatus). ASTM.

Cita Chicago Style (17a ed.)

American Society for Testing and Materials. Standard Test Methods for Softening Point of Bitumen (ring-and-ball Apparatus). Philadelphia: ASTM, 2000.

Cita MLA (9a ed.)

American Society for Testing and Materials. Standard Test Methods for Softening Point of Bitumen (ring-and-ball Apparatus). ASTM, 2000.