Não informado. (1962). Cis information sheet. International Occupational Safety and Health Information Centre.
Chicago-Zitierstil (17. Ausg.)Não informado. Cis Information Sheet. Geneva, Suíça: International Occupational Safety and Health Information Centre, 1962.
MLA-Zitierstil (8. Ausg.)Não informado. Cis Information Sheet. International Occupational Safety and Health Information Centre, 1962.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.