@misc{indiciae8f8d877d139b,
  title = {The need for experiments to understand population dynamics of American black ducks},
  author = {David R. Anderson and K.P. Burnham and J.D. Nichols and M.J. Conroy},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/5222219},
  note = {Source identifier: 5222219}
}