@dataset{currentDoc,
  author = {},
  title = {Orillia Ontario. 1:50,000. Map Sheet 031D11, ed. 7, 2011},
  publisher = {Other Borealis Collections},
  issued = {2011-01-01},
  howpublished = {{\url{https://doi.org/10.5683/SP3/SA3NC0}}}
}