@misc{city2019harmony, title = {Harmony Gold Mine (Doornkop) Surface Water Quality (July - September 2019)} author = {City of Johannesburg}, url = {https://www.reservoir.co.za/forums/vaalbarrage/klipriver_forum/klip_reports/current/HG_KlipRiver_Jul-Sep2019.pdf}, year = {2019} }