TY  - RPRT
TI  - NAWQA, National Water-Quality Assessment Program; Allegheny-Monongahela River Basin
AU  - Steven D. McAuley
AU  - Juliane B. Brown
AU  - James I. Sams
PY  - 1997
DO  - 10.3133/ofr97246
UR  - https://pubs.usgs.gov/publication/ofr97246
ID  - ofr97246
ER  -