TY  - RPRT
TI  - Quality assurance guidelines for the analyses of sediment concentration by U.S. Geological Survey sediment laboratories
AU  - J. M. Knott
AU  - Clyde J. Sholar
AU  - Wilbur J. Matthes
PY  - 1992
DO  - 10.3133/ofr9233
UR  - https://pubs.usgs.gov/publication/ofr9233
ID  - ofr9233
ER  -