APA

International Society for Rock Mechanics. Committee on Laboratory Tests. Document no 4, . (1977). Suggested methods for determining sound velocity. ( Int. J. Rock Mech. Min. Sci. Vol 15, s 53-58). Lissabon: International Society for Rock Mechanics. Committee on Laboratory Tests. Document no 4.

Chicago

International Society for Rock Mechanics. Committee on Laboratory Tests. Document no 4, . 1977. Suggested methods for determining sound velocity. ( Int. J. Rock Mech. Min. Sci. Vol 15, s 53-58). Lissabon: International Society for Rock Mechanics. Committee on Laboratory Tests. Document no 4.

Harvard

International Society for Rock Mechanics. Committee on Laboratory Tests. Document no 4, . (1977). Suggested methods for determining sound velocity. ( Int. J. Rock Mech. Min. Sci. Vol 15, s 53-58). Lissabon: International Society for Rock Mechanics. Committee on Laboratory Tests. Document no 4.

MLA

International Society for Rock Mechanics. Committee on Laboratory Tests. Document no 4, . Suggested methods for determining sound velocity. ( Int. J. Rock Mech. Min. Sci. Vol 15, s 53-58). Lissabon: International Society for Rock Mechanics. Committee on Laboratory Tests. Document no 4. 1977.