(2009). Safety and health in underground coalmines: = Safety and health in underground coal mines. International Labour Office.
Chicago-Zitierstil (17. Ausg.)Safety and Health in Underground Coalmines: = Safety and Health in Underground Coal Mines. Geneva: International Labour Office, 2009.
MLA-Zitierstil (9. Ausg.)Safety and Health in Underground Coalmines: = Safety and Health in Underground Coal Mines. International Labour Office, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.