TY  - RPRT
TI  - Precambrian iron-formations of the United States
AU  - R. W. Bayley
AU  - H. L. James
PY  - 1973
DO  - 10.2113/gsecongeo.68.7.934
UR  - https://pubs.usgs.gov/publication/70241232
ID  - 70241232
ER  -