TY  - RPRT
TI  - Summary of discussion of pre-cambrian geochro-nology of Minnesota and adjacent areas
AU  - S. S. Goldich
AU  - A.O. Nier
AU  - H. Baadsgaard
AU  - J. Hoffman
AU  - H.W. Krueger
PY  - 2006
DO  - 10.1111/j.1749-6632.1961.tb35499.x
UR  - https://pubs.usgs.gov/publication/70220648
ID  - 70220648
ER  -