Weak Rock : soft, fractured and weathered rock : proceedings of the international symposium on weak rock, Tokyo, 21-24 September 1981
Weak Rock : soft, fractured and weathered rock : proceedings of the international symposium on weak rock, Tokyo, 21-24 September 1981
edited by Koichi Akai ,Masao Hayashi and Yuichi Nishimatsu
- Netherland A.A. Balkema 1981
- ix, 603-1326p. : ill. ; 25 cm.
Proceedings of the international symposium on weak rock Tokyo/21-24,September 1981