Mine sanitation

CENTO symposium on mine health and safety Central Treaty Organization (CENTO); edited by Luise Lackland Shields 1966 CENTO Symposium on Mine Health and Safety Author not listed 1967 Experience with radon control in mining Bykhovskii, A.V. 1974 Proceedings of the Symposium on Health, Safety and Progress Author not listed 1977 The evolution of health and safety in mines Bryan, Andrew Meikle 1975