TY  - RPRT
TI  - Part I—History and activities of the section of geophysics of the United States Geological Survey
AU  - F.W. Lee
PY  - 2014
DO  - 10.1029/tr020i003p00280
UR  - https://pubs.usgs.gov/publication/70214051
ID  - 70214051
ER  -