General engineering : health and safety 1977-82 / [National Industry Group]. — London : Her Majesty´s Stationery Office, 1984. — CIDIMA. — 19 p. : il., gráf. ; 30 cm. — ( Health & safety executive) ISBN 0-11-883733-8 1. Industria.2. Salud laboral.3. Seguridad en el trabajo. I. National Industry Group. 13.1.0