TY  - RPRT
TI  - Problems on the Upper Mississippi River and its tributaries: Need for a long-term resource monitoring program
AU  - G. A. Jackson
AU  - C. E. Korschgen
AU  - P. A. Thiel
AU  - J. Besser
PY  - 1984
UR  - https://pubs.usgs.gov/publication/85374
ID  - 85374
ER  -