TY  - RPRT
TI  - Uranium, radium, and selected metallic-element analyses of spring water and travertine samples from the Grand Canyon, Arizona
AU  - J.E. Peterson
AU  - S.E. Buell
AU  - R. A. Cadigan
AU  - J.K. Felmlee
AU  - C.S. Spirakis
PY  - 1977
DO  - 10.3133/ofr7736
UR  - https://pubs.usgs.gov/publication/ofr7736
ID  - ofr7736
ER  -