Geochemical prospecting for zinc, lead, copper, and silver, Lancaster Valley, southeastern Pennsylvania /
by Jacob Freedman
- Washington : U.S. Govt. Print. Off., 1972
- v, C49 p. : ill. ; 24 cm.
- Contributions to geochemistry .
- Geological Survey bulletin ; 1314-C .
Part of illustrative matter fold. in pocket
Bibliography: p. C47-C49
Geochemical prospecting Nonferrous metals--Lancaster Valley, Pa.