TY - BOOK ED - E.U.A. Department of Health and Human Services TI - NIOSH pocket guide to chemical hazards U1 - 658.382 21 PY - 1985/// CY - Washington PB - National Institute for Occupational Safety and Health KW - Industria KW - Medidas de seguridad KW - Productos químicos KW - Efectos fisiológicos KW - Toxicología industrial ER -