TY  - RPRT
TI  - Operating manual for the R100 digital vibration-time totalizer
AU  - Edwin H. Cordes
AU  - Minghua Shi
PY  - 1988
DO  - 10.3133/ofr88454
UR  - https://pubs.usgs.gov/publication/ofr88454
ID  - ofr88454
ER  -