Prevention of accidents due to electricity underground in coal mines. - Geneva, 1959. - v, 54 p. 18 cm. At head of title: I. L. O. codes of practice. LCCN: l 59000148 Subjects--Topical Terms: Coal mines and mining--Safety measures.Electricity in mining. LC Class. No.: TN343 / .I63 Dewey Class. No.: 622.8