TY  - RPRT
TI  - Transcontinental geophysical survey (35°-39° N): Bouguer gravity map from 74° to 87° W longitude
AU  - the U.S. Air Force Aeronautical Chart and Information Center
PY  - 1968
DO  - 10.3133/i535b
UR  - https://pubs.usgs.gov/publication/i535B
ID  - i535B
ER  -