TY  - RPRT
TI  - Bibliography of North American geology for 1906 and 1907, with subject index
AU  - Fred Boughton Weeks
AU  - John M. Nickles
PY  - 1909
DO  - 10.3133/b372
UR  - https://pubs.usgs.gov/publication/b372
ID  - b372
ER  -