@misc{city2018city,
  title = {City of Johannesburg Quarterly Water Quality status of the Rietspruit catchment}
  author = {City of Johannesburg},
  url = {https://www.reservoir.co.za/forums/vaalbarrage/rietspruit_forum/rietspruit_reports/current/CoJ_May-Jul2018.pdf},
  year = {2018}
}