@misc{indiciaea62b8921c1da,
  title = {A laboratory study of some physical properties of sulfide ores in igneous and metamorphic rocks from the Burnt Nubble area, Somerset County, Maine},
  author = {Gordon R. Johnson and Lennart A. Anderson},
  year = {1981},
  doi = {10.3133/ofr81669},
  url = {https://pubs.usgs.gov/publication/ofr81669},
  note = {Source identifier: ofr81669}
}