Cassiterite in Gold Placers at Humboldt Creek Serpentine-Kougarok Area
Geological Survey (U.S.), Allen L. Clark, Hubert William Lakin, Betsy A. Weld, Margaret S. Griffin, George W. Brett, Raymond L. Elliott, Bruce L. Reed, Charles Caldwell Hawley, Douglas M. Sheridan, Gordon H. VanSickle, J. H. Stewart, Edwin H. McKee, Richard Bartlett Taylor, Sherman P. Marsh
