TY  - BOOK
AU  - Gray,Carlyle
TI  - Richland quadrangle,
T2  - Geologic atlas of Pennsylvania, 167D
PY  - 1958///]
CY  - [Harrisburg
PB  - Pennsylvania Topographic and Geologic Survey
KW  - Geology
KW  - Pennsylvania
KW  - Richland Quadrangle
KW  - Maps
N1  - "Pennsylvania Geological Survey. 4th series."; Text in columns; Spine title: Geology of the Richland quadrangle; On verso: Geologic map of the Richland quadrangle, Pennsylvania (58 x 44 cm.  Scale 1:24,000)
ER  -