TY  - RPRT
TI  - Potential preservation of native American petroglyphs at Steamboat Butte, Montana, using ethyl silicate solution treatments
AU  - D.A. Grisafe
PY  - 2017
DO  - 10.1080/2052546.2002.11932112
UR  - https://pubs.usgs.gov/publication/70035503
ID  - 70035503
ER  -