@misc{indiciaec86a510253af,
  title = {Pre-hunting-season banding of mallards and black ducks progress report, 1959 and 1960},
  author = {Robert I. Smith and Aelred D. Geis},
  year = {1961},
  url = {https://pubs.usgs.gov/publication/37526},
  note = {Source identifier: 37526}
}