TY  - RPRT
TI  - Geochemical exploration techniques based on distribution of selected elements in rocks, soils, and plants, Vekol porphyry copper deposit area, Pinal County, Arizona
AU  - Maurice A. Chaffee
PY  - 1977
DO  - 10.3133/b1278e
UR  - https://pubs.usgs.gov/publication/b1278E
ID  - b1278E
ER  -