@misc{indiciaea1df9af9f324,
  title = {Characteristics of central North Dakota wetlands determined from sample aerial photographs and ground study},
  author = {L.M. Cowardin and D.S. Gilmer and L.M. Mechlin},
  year = {1981},
  url = {https://pubs.usgs.gov/publication/1001414},
  note = {Source identifier: 1001414}
}