TY  - RPRT
TI  - Interpretation of the aeromagnetic pattern of the San Juan primitive area, Colorado
AU  - Peter Popenoe
AU  - Thomas August Steven
PY  - 1969
DO  - 10.3133/ofr69211
UR  - https://pubs.usgs.gov/publication/ofr69211
ID  - ofr69211
ER  -