@misc{indiciaecb6faf4cc036,
  title = {[Book review] Birding the Delaware Valley Region, by John J. Harding and Justin J. Harding},
  author = {C.S. Robbins},
  year = {1979},
  url = {https://pubs.usgs.gov/publication/5222524},
  note = {Source identifier: 5222524}
}