TY  - RPRT
TI  - Summary of miscellaneous potassium-argon age measurements, U.S. Geological Survey, Menlo Park, California, for the years 1972-74
PY  - 1976
DO  - 10.3133/cir727
UR  - https://pubs.usgs.gov/publication/cir727
ID  - cir727
ER  -