TY  - RPRT
TI  - Summary of data for quality assessment materials analyzed from January 1994 through November 1998 using the NAWQA Program bed-sediment analytical protocol
AU  - R. F. Sanzolone
PY  - 1999
DO  - 10.3133/ofr99588
UR  - https://pubs.usgs.gov/publication/ofr99588
ID  - ofr99588
ER  -