@misc{indiciaec2d5647fb37c,
  title = {An aerial photo-census of Chesapeake Bay and North Carolina canvasbacks},
  author = {G.M. Haramis and J.R. Goldsberry},
  year = {1984},
  url = {https://pubs.usgs.gov/publication/5210716},
  note = {Source identifier: 5210716}
}