TY  - RPRT
TI  - Schematic diagrams and parts list for portable telluric current profiler
AU  - Donald H. Rohret
AU  - Roger H. Lescelius
AU  - Frank C. Frischknecht
PY  - 1975
DO  - 10.3133/ofr75641
UR  - https://pubs.usgs.gov/publication/ofr75641
ID  - ofr75641
ER  -