Guidebook to the geology of the Pennsylvania turnpike,
Cleaves, Arthur B. 1905-
Guidebook to the geology of the Pennsylvania turnpike, by A. B. Cleaves and Geo. H. Ashley. - Harrisburg, Pa., Dept. of Internal Affairs, Topographic and Geologic Survey, 1942. - iv, 37 p. illus. (incl. maps) plates. 23 cm.
gs 42000209
Geology--Pennsylvania
Pennsylvania Turnpike (Pa.)
QE157 / .C55
557.48
Guidebook to the geology of the Pennsylvania turnpike, by A. B. Cleaves and Geo. H. Ashley. - Harrisburg, Pa., Dept. of Internal Affairs, Topographic and Geologic Survey, 1942. - iv, 37 p. illus. (incl. maps) plates. 23 cm.
gs 42000209
Geology--Pennsylvania
Pennsylvania Turnpike (Pa.)
QE157 / .C55
557.48