@misc{indiciae31fb3b2713c8,
  title = {Bedrock geologic map of the Monmouth Junction quadrangle, New Jersey},
  author = {Ronald A. Parker and Hugh F. Houghton},
  year = {1990},
  doi = {10.3133/ofr90219},
  url = {https://pubs.usgs.gov/publication/ofr90219},
  note = {Source identifier: ofr90219}
}