TY  - RPRT
TI  - Blood values of the canvasback duck by age, sex and season
AU  - R. M. Kocan
AU  - S.M. Pitts
PY  - 1976
DO  - 10.7589/0090-3558-12.3.341
UR  - https://pubs.usgs.gov/publication/5224119
ID  - 5224119
ER  -