International Labour Office. (1983). Working conditions and environment: A worker's education manual. ILO.
Chicago-referens (17:e uppl.)International Labour Office. Working Conditions and Environment: A Worker's Education Manual. Geneva: ILO, 1983.
MLA-referens (9:e uppl.)International Labour Office. Working Conditions and Environment: A Worker's Education Manual. ILO, 1983.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.