TY  - RPRT
TI  - Preliminary contour maps of gamma-ray spectrometric and aeromagnetic survey of the Freer area in Duval, Live Oak, McMullen, and Webb counties, Texas
AU  - Karen A. Schulz
PY  - 1976
DO  - 10.3133/ofr76525
UR  - https://pubs.usgs.gov/publication/ofr76525
ID  - ofr76525
ER  -