TY  - RPRT
TI  - Writing on the walls: Geological context and early American spiritual beliefs
AU  - S. E. Hough
PY  - 2007
DO  - 10.1144/gsl.sp.2007.273.01.09
UR  - https://pubs.usgs.gov/publication/70030167
ID  - 70030167
ER  -