@misc{indiciae82d4a4462f5e,
  title = {Subyearling American shad concentrate in swifter current in the upper Delaware River},
  author = {R. M. Ross and T. W. H. Backman},
  year = {1991},
  url = {https://pubs.usgs.gov/publication/2001473},
  note = {Source identifier: 2001473}
}