TY  - RPRT
TI  - The National Stream Quality Accounting Network (NASQAN) - Some questions and answers
AU  - John F. Ficke
AU  - Richard O. Hawkinson
PY  - 1975
DO  - 10.3133/cir719
UR  - https://pubs.usgs.gov/publication/cir719
ID  - cir719
ER  -