TY  - RPRT
TI  - Upper mantle electrical conductivity for seven subcontinental regions of the Earth
AU  - W.H. Campbell
AU  - E.R. Schiffmacher
PY  - 1988
DO  - 10.5636/jgg.40.1387
UR  - https://pubs.usgs.gov/publication/70013226
ID  - 70013226
ER  -