TY  - RPRT
TI  - Principal facts for gravity stations in the North Park-Middle Park area, Colorado
AU  - John Charles Behrendt
AU  - Peter Popenoe
PY  - 1970
DO  - 10.3133/ofr7022
UR  - https://pubs.usgs.gov/publication/ofr7022
ID  - ofr7022
ER  -