TY  - BOOK
AU  - Miller,Benjamin L.
TI  - Graphite deposits of Pennsylvania,
T2  - Pennsylvania.  Topographic and geologic survey.  Report
AV  - GA61.P4 A5 no. 6
PY  - 1912///
CY  - Harrisburg
PB  - C.E. Aughinbaugh, printer to the state of Pennsylvania
KW  - Graphite
KW  - Pennsylvania
N1  - Bibliograhy: p. 129-140
ER  -