APA

International Society for Rock Mechanics. Committee on Field Tests. Document no 4, . (1977). Suggested methods for the q uantitative description of discontinuities in Rock Masses. ( Int. J. Rock Mech. Min. Sci. Vol 15, s 319-368). Lissabon: International Society for Rock Mechanics. Committee on Field Tests. Document no 4.

Chicago

International Society for Rock Mechanics. Committee on Field Tests. Document no 4, . 1977. Suggested methods for the q uantitative description of discontinuities in Rock Masses. ( Int. J. Rock Mech. Min. Sci. Vol 15, s 319-368). Lissabon: International Society for Rock Mechanics. Committee on Field Tests. Document no 4.

Harvard

International Society for Rock Mechanics. Committee on Field Tests. Document no 4, . (1977). Suggested methods for the q uantitative description of discontinuities in Rock Masses. ( Int. J. Rock Mech. Min. Sci. Vol 15, s 319-368). Lissabon: International Society for Rock Mechanics. Committee on Field Tests. Document no 4.

MLA

International Society for Rock Mechanics. Committee on Field Tests. Document no 4, . Suggested methods for the q uantitative description of discontinuities in Rock Masses. ( Int. J. Rock Mech. Min. Sci. Vol 15, s 319-368). Lissabon: International Society for Rock Mechanics. Committee on Field Tests. Document no 4. 1977.