TY  - BOOK
AU  - Bascom,F.
AU  - Stose,George Willis
TI  - Geology and mineral resources of the Honeybrook and Phoenixville quadrangles, Pennsylvania,
T2  - U.S. Geological survey. Bulletin 891
AV  - QE75 .B9 no. 891
PY  - 1938///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Geology
KW  - Pennsylvania
KW  - Mines and mineral resources
N1  - At head of title: United States Department of the Interior...Geological survey
ER  -