TY  - RPRT
TI  - 1981 Water Quality Laboratory Services Catalog
AU  - W.A. Beetem
AU  - L.C. Friedman
AU  - G.R. Perryman
AU  - C.A. Watterson
PY  - 1980
DO  - 10.3133/ofr801279
UR  - https://pubs.usgs.gov/publication/ofr801279
ID  - ofr801279
ER  -