Cita APA (7a ed.)

American Society for Testing and Materials., editor literario. Annual book of ASTM standards. Part 19, Natural building stones; soil and rock. American Society for Testing and Materials.

Cita Chicago Style (17a ed.)

American Society for Testing and Materials., editor literario. Annual Book of ASTM Standards. Part 19, Natural Building Stones; Soil and Rock. Philadelphia: American Society for Testing and Materials.

Cita MLA (9a ed.)

American Society for Testing and Materials., editor literario. Annual Book of ASTM Standards. Part 19, Natural Building Stones; Soil and Rock. American Society for Testing and Materials.