TY  - RPRT
TI  - Laboratory hydraulic calibration of the Helley-Smith bedload sediment sampler
AU  - Leroy Druffel
AU  - W. W. Emmett
AU  - V.R. Schneider
AU  - J. V. Skinner
PY  - 1976
DO  - 10.3133/ofr76752
UR  - https://pubs.usgs.gov/publication/ofr76752
ID  - ofr76752
ER  -