1. Laws, rules and regulations (revised 1942) Author(s): Colorado, enacting jurisdiction. Publication: Denver : Colorado State Board of Health, [1942] Subject(s): Public Health -- legislation & jurisprudenceColorado
2. Factory safety manual Author(s): Colorado. Industrial Commission, author. Publication: Denver, Colorado : Industrial Commission. of Colorado, 1942 Subject(s): Occupational HealthAccidents, Occupational -- prevention & controlColorado