TY  - RPRT
TI  - Digitized aeromagnetic datasets for the conterminous United States, Hawaii, and Puerto Rico
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1999
DO  - 10.3133/ofr99557
UR  - https://pubs.usgs.gov/publication/ofr99557
ID  - ofr99557
ER  -