TY  - BOOK
AU  - Freedman,Jacob
TI  - Geochemical prospecting for zinc, lead, copper, and silver, Lancaster Valley, southeastern Pennsylvania
T2  - Geological Survey bulletin
U1  - 622.1 
PY  - 1972///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Geochemical prospecting
KW  - Nonferrous metals
KW  - Lancaster Valley, Pa
N1  - Part of illustrative matter fold. in pocket; Bibliography: p. C47-C49
ER  -