TY  - RPRT
TI  - Aeromagnetic map of the Bopolu Quadrangle, Liberia
AU  - John C. Behrendt
AU  - C.S. Wotorson
PY  - 1974
DO  - 10.3133/i772b
UR  - https://pubs.usgs.gov/publication/i772B
ID  - i772B
ER  -