TY  - RPRT
TI  - Estimating reproductive success in colonial waterbirds: An evaluation
AU  - R.M. Erwin
AU  - T. W. Custer
PY  - 1982
DO  - 10.2307/1521032
UR  - https://pubs.usgs.gov/publication/5221864
ID  - 5221864
ER  -