National Institute for Occupational Safety and Health. (1977). Practical problems and policy issues arising from exposures to hazardous chemical and physical agents in the workplace. Cincinati, Ohio: National Institute for Occupational Safety and Health.
Citación estilo ChicagoNational Institute for Occupational Safety and Health. Practical Problems and Policy Issues Arising From Exposures to Hazardous Chemical and Physical Agents in the Workplace. Cincinati, Ohio: National Institute for Occupational Safety and Health, 1977.
Cita MLANational Institute for Occupational Safety and Health. Practical Problems and Policy Issues Arising From Exposures to Hazardous Chemical and Physical Agents in the Workplace. Cincinati, Ohio: National Institute for Occupational Safety and Health, 1977.