@misc{indiciae72e8d02e06d0,
  title = {[Book review] Helping and communal breeding in birds: ecology and evolution by Jerram L. Brown},
  author = {R. B. Clapp},
  year = {1988},
  url = {https://pubs.usgs.gov/publication/5223566},
  note = {Source identifier: 5223566}
}