TY  - RPRT
TI  - Trace elements and major-element oxides in the Phosphoria Formation at Enoch Valley, Idaho; Permian sources and current reactivities
AU  - D.Z. Piper
PY  - 1999
DO  - 10.3133/ofr99163
UR  - https://pubs.usgs.gov/publication/ofr99163
ID  - ofr99163
ER  -