TY  - RPRT
TI  - Use of prairie pothole habitat by breeding mallards
AU  - T.J. Dwyer
AU  - Gary L. Krapu
AU  - D.M. Janke
PY  - 1979
DO  - 10.2307/3800366
UR  - https://pubs.usgs.gov/publication/1001466
ID  - 1001466
ER  -