@dataset{currentDoc,
  author = {of Canada, Government and Establishment, Army Survey},
  title = {Tillsonburg (West) Ontario. 1:50,000. Map Sheet 040I15, ed. 4, 1963},
  publisher = {Other Borealis Collections},
  issued = {2021-11-04},
  howpublished = {{\url{https://doi.org/10.5683/SP3/KXCZCJ}}}
}