Não informado. (2018). Monthly Review. Department of Labor, Division of Industrial Hygiene.
Chicago-Zitierstil (17. Ausg.)Não informado. Monthly Review. Albany, NY: Department of Labor, Division of Industrial Hygiene, 2018.
MLA-Zitierstil (8. Ausg.)Não informado. Monthly Review. Department of Labor, Division of Industrial Hygiene, 2018.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.