Maller, J. (1983). Health and safety for workers: A study of conditions of health and safety in the metal industry in the Vaal Traingle. Johannesburg: Development Studies Group (DSG).
Lua i Stíl Chicago (17ú heag.)Maller, Judy. Health and Safety for Workers: A Study of Conditions of Health and Safety in the Metal Industry in the Vaal Traingle. Johannesburg: Development Studies Group (DSG), 1983.
Lua MLA (8ú heag.)Maller, Judy. Health and Safety for Workers: A Study of Conditions of Health and Safety in the Metal Industry in the Vaal Traingle. Johannesburg: Development Studies Group (DSG), 1983.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.