@misc{indiciaeeb34f20dbf25,
  title = {Improving duck marshes by weed control},
  author = {A. C. Martin and R.C. Erickson and J.H. Steenis},
  year = {1957},
  url = {https://pubs.usgs.gov/publication/5230049},
  note = {Source identifier: 5230049}
}