TY  - RPRT
TI  - Operation and maintenance of a deep-well water-level measurement device, the "Iron Horse"
AU  - J. E. Weir
AU  - J.W. Nelson
PY  - 1976
DO  - 10.3133/wri7627
UR  - https://pubs.usgs.gov/publication/wri7627
ID  - wri7627
ER  -