TY  - RPRT
TI  - Quality of surface waters of the United States, 1949 : Parts 7 -14
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1953
DO  - 10.3133/wsp1163
UR  - https://pubs.usgs.gov/publication/wsp1163
ID  - wsp1163
ER  -