TY  - BOOK
AU  - Cleaves,Arthur B.
AU  - Ashley,GeoH.
TI  - Guidebook to the geology of the Pennsylvania turnpike,
AV  - QE157 .C55
U1  - 557.48 
PY  - 1942///
CY  - Harrisburg, Pa.
PB  - Dept. of Internal Affairs, Topographic and Geologic Survey
KW  - Geology
KW  - Pennsylvania
KW  - Pennsylvania Turnpike (Pa.)
ER  -