TY  - RPRT
TI  - Distribution of populations and hunting kill of the canvasback
AU  - R. E. Stewart
AU  - A. D. Geis
AU  - C.D. Evans
PY  - 1958
DO  - 10.2307/3796822
UR  - https://pubs.usgs.gov/publication/5220115
ID  - 5220115
ER  -