@misc{indiciae7273d539cc1b,
  title = {Status of duck virus enteritis (duck plague) in the United States},
  author = {J.T. Walker and C.J. Pfow and S.S. Newcomb and W.D. Urban and H.E. Nadler and L. N. Locke},
  year = {1970},
  url = {https://pubs.usgs.gov/publication/5220036},
  note = {Source identifier: 5220036}
}