TY  - JOUR
T1  - Quality of surface waters of the United States.
CY  - Washington,
CN  - TC801
CN  - TC801
PB  - Dept. of the Interior, Geological Survey; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
PP  - Washington,
N1  - Chiefly tables.
N1  - Includes index.
ID  - 225393
KW  - Water quality
TI  - Quality of surface waters of the United States.
ER  -