TY  - BOOK
ED  - United States.
TI  - Better monitoring techniques are needed to assess the quality of rivers and streams
PY  - 1981///?-]
CY  - [Washington, D.C.
KW  - Water quality
KW  - United States
KW  - Measurement
N1  - Volume 1; CRDP Program Historic Shelflist record
ER  -