TY  - RPRT
TI  - Replacement materials for lead weights used in measuring ground-water levels
AU  - B. G. Katz
AU  - J.C. Jelinski
PY  - 1999
DO  - 10.3133/ofr9952
UR  - https://pubs.usgs.gov/publication/ofr9952
ID  - ofr9952
ER  -