TY  - RPRT
TI  - Methods for collection and processing of surface-water and bed- material samples for physical and chemical analyses
AU  - J. R. Ward
AU  - C.A. Harr
PY  - 1990
DO  - 10.3133/ofr90140
UR  - https://pubs.usgs.gov/publication/ofr90140
ID  - ofr90140
ER  -