TY - RPRT TI - A comparison of analytical methods used in geochemical prospecting for copper AU - L.C. Huff AU - T.G. Lovering AU - H. W. Lakin AU - A.T. Myers PY - 1961 DO - 10.2113/gsecongeo.56.5.855 UR - https://pubs.usgs.gov/publication/70220604 ID - 70220604 ER -