@misc{indiciae0d6d109d146a,
  title = {Cost-effectiveness of the stream-gaging program in Maryland, Delaware, and the District of Columbia},
  author = {David H. Carpenter and R.W. James and D.F. Gillen},
  year = {1987},
  doi = {10.3133/wri874093},
  url = {https://pubs.usgs.gov/publication/wri874093},
  note = {Source identifier: wri874093}
}