Symposium on Rock Mechanics, 11th, University of California, Berkeley.
Rock mechanics, theory and practice : proceedings, eleventh Symposium on Rock Mechanics, held at the University of California, Berkeley, California, June 16-19, 1969 / edited by Wilbur H. Somerton.
Rock mechanics.
Somerton, W. H.
University of California, Berkeley. Continuing Education in Engineering.
University of California, Berkeley. College of Engineering.
Intersociety Committee for Rock Mechanics.