TY - BOOK AU - National Research Council TI - Annual Review of U.S. Progress in Rock Mechanics: Rock Mass Characterization DO - 10.17226/18913 PY - 1983 UR - https://nap.nationalacademies.org/catalog/18913/annual-review-of-us-progress-in-rock-mechanics-rock-mass PB - The National Academies Press CY - Washington, DC LA - English KW - KW - Earth Sciences ER -