TY  - RPRT
TI  - Reliability of kill and activity estimates in the U.S. waterfowl hunter survey
AU  - Leigh M. Couling
AU  - A.R. Sen
AU  - Elwood M. Martin
PY  - 1982
UR  - https://pubs.usgs.gov/publication/ssrw240
ID  - ssrw240
ER  -