TY  - RPRT
TI  - Twenty-five year trends in diving duck populations in Chesapeake Bay
AU  - Matthew C. Perry
AU  - R. E. Munro
AU  - G.M. Haramis
PY  - 1981
UR  - https://pubs.usgs.gov/publication/5221656
ID  - 5221656
ER  -