Canadian occupational health & safety news.
Toronto, BIG Magazines [etc.]
Cumulative indexes published separately under title: COHSN index.
Imprint varies; published: Don Mills, Ont., Southam Magazine & Information Group, June 12, 1978-19--.
Includes supplements.
Supplements accompany some no.
Industrial hygiene
Industrial safety
Occupational diseases.
Occupational Diseases
Hygiène industrielle
Sécurité du travail
Maladies professionnelles.
Industrial hygiene.
Industrial safety.