TY  - RPRT
TI  - A geophysical study of North Park and the surrounding ranges, Colorado
AU  - John C. Behrendt
AU  - Peter Popenoe
AU  - Robert E. Mattick
PY  - 1969
DO  - 10.1130/0016-7606(1969)80[1523:agsonp]2.0.co;2
UR  - https://pubs.usgs.gov/publication/70224280
ID  - 70224280
ER  -