@misc{indiciae854eeb4967a8,
  title = {Development of ground-water vulnerability database for the U.S. Environmental protection agency's hazard ranking system using a geographic information system},
  author = {John S. Clarke and Jerry W. Sorensen and Henry G. Strickland and George Collins},
  year = {1992},
  url = {https://pubs.usgs.gov/publication/70016749},
  note = {Source identifier: 70016749}
}