TY  - RPRT
TI  - Aeromagnetic map of the El Cajon 1:100,000 scale Quadrangle, California
AU  - Robert C. Jachens
PY  - 1992
DO  - 10.3133/ofr92548
UR  - https://pubs.usgs.gov/publication/ofr92548
ID  - ofr92548
ER  -