TY  - RPRT
TI  - Visible and ultraviolet reflectance and luminescence from various Saudi Arabian and Indiana limestone rocks
AU  - H.V. Watts
AU  - H.J. Goldman
PY  - 1967
DO  - 10.3133/ofr67274
UR  - https://pubs.usgs.gov/publication/ofr67274
ID  - ofr67274
ER  -