APA

International Society for Rock Mechanics [Balkema], . (1979). Rock mechanics. 4 International congress, Montreaux, 2-8 Sept. 1979. Proceedings. Vol 1-3. Rotterdam: International Society for Rock Mechanics [Balkema].

Chicago

International Society for Rock Mechanics [Balkema], . 1979. Rock mechanics. 4 International congress, Montreaux, 2-8 Sept. 1979. Proceedings. Vol 1-3. Rotterdam: International Society for Rock Mechanics [Balkema].

Harvard

International Society for Rock Mechanics [Balkema], . (1979). Rock mechanics. 4 International congress, Montreaux, 2-8 Sept. 1979. Proceedings. Vol 1-3. Rotterdam: International Society for Rock Mechanics [Balkema].

MLA

International Society for Rock Mechanics [Balkema], . Rock mechanics. 4 International congress, Montreaux, 2-8 Sept. 1979. Proceedings. Vol 1-3. Rotterdam: International Society for Rock Mechanics [Balkema]. 1979.