TY  - RPRT
TI  - Radiometric ages of igneous rocks from Pima, Santa Cruz, and Cochise counties, southeastern Arizona
AU  - Richard F. Marvin
AU  - T. W. Stern
AU  - S. C. Creasey
AU  - H. H. Mehnert
PY  - 1973
DO  - 10.3133/b1379
UR  - https://pubs.usgs.gov/publication/b1379
ID  - b1379
ER  -