TY - BOOK AU - Litton,C.D. ED - United States TI - Fire detectors in underground mines T2 - Information circular - Bureau of Mines ; 8786 PY - 1979/// CY - [Washington] PB - Dept. of the Interior, Bureau of Mines KW - Fire detectors KW - Local KW - Mine fires KW - Prevention and control N1 - Includes bibliographies ER -