@misc{indiciae7ef75adbfcdd,
  title = {Magnetite deposits and magnetic anomalies of the Spruce Mountain tract, St. Lawrence County, New York},
  author = {B. F. Leonard},
  year = {1953},
  doi = {10.3133/mf10},
  url = {https://pubs.usgs.gov/publication/mf10},
  note = {Source identifier: mf10}
}