@misc{indiciaeddef73799029,
  title = {Data on the distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and estuary, Maryland, Virginia, and the District of Columbia, 1986},
  author = {N. B. Rybicki and R. T. Anderson and J.M. Shapiro and K. L. Johnson and C.L. Schulman},
  year = {1987},
  doi = {10.3133/ofr87575},
  url = {https://pubs.usgs.gov/publication/ofr87575},
  note = {Source identifier: ofr87575}
}