@misc{indiciae240f50283fce,
  title = {Mineralogical characterization of the Shelburne Marble; a Vermont marble test stone used to study the effects of acid rain},
  author = {E. S. McGee},
  year = {1987},
  doi = {10.3133/ofr87447},
  url = {https://pubs.usgs.gov/publication/ofr87447},
  note = {Source identifier: ofr87447}
}