00574nam a22001577a 4500 230512b |||||||| |||| 00| 0 eng d National Science Library National Science Library 552:531(082.2) L0 Rock mechanics theory and practice / Proceedings eleventh symposium on rock mechanics held at the university of California, 16-19 June, 1969 New York: Society of mining engineers, 1970 ix, 762p. Rock Education Somerton, Wilbur H (Ed.) udc BK 29539 29539 0 0 udc 0 5525310822_L0 0 44303 NSL NSL GF/Rk-10/C-2/R-2 2023-05-12 0 552:531(082.2) L0 41895 2023-05-12 00:00:00 2023-05-12 BK