TY  - RPRT
TI  - Survival of wood duck and mallard broods in north-central Minnesota
AU  - I.J. Ball
AU  - D.S. Gilmer
AU  - L.M. Cowardin
AU  - J. H. Riechmann
PY  - 1975
DO  - 10.2307/3800241
UR  - https://pubs.usgs.gov/publication/1001828
ID  - 1001828
ER  -