TY  - BOOK
AU  - Bascom,F.
TI  - Geology and mineral resources of the Quakertown-Doylestown district, Pennsylvania and New Jersey
T2  - Bulletin
AV  - QE75 .B9 no. 828
PY  - 1931///
CY  - Washington
PB  - U.S. G.P.O.
KW  - Geology
KW  - Pennsylvania
KW  - New Jersey
KW  - Mines and mineral resources
N1  - Col. map on folded leaf in pocket; Includes bibliographical references and index
ER  -