TY  - RPRT
TI  - Bibliography of North American geology, 1948
AU  - Emma Mertins Thom
AU  - Marjorie Hooker
AU  - R.R. Dunaven
PY  - 1950
DO  - 10.3133/b968
UR  - https://pubs.usgs.gov/publication/b968
ID  - b968
ER  -