TY  - RPRT
TI  - Acid rain effects on waterfowl: Use of black duck broods to assess food resources of experimentally acidified wetlands
AU  - G.M. Haramis
AU  - Diane S. Chu
PY  - 1987
UR  - https://pubs.usgs.gov/publication/5210002
ID  - 5210002
ER  -