TY - BOOK ED - International Labour Office TI - Safety in the manufacturae and use of acetylene T2 - Its Studies and reports, Series F, second section (Safety) AV - HD4813 .I4 ser. F, 2d sect. no. 5 PY - 1931/// CY - Geneva KW - Acetylene KW - Industrial safety N1 - At head of title: International labour office; Bibliography: p. 186-188 ER -