17 records – page 1 of 2.
The beginnings of the petroleum industry, sources and bibliography
A checklist of Pennsylvania newspapers
Guide to the published archives of Pennsylvania covering the 138 ...
Inventory of the county archives of Pennsylvania: Lehigh County
The Nanticoke Indians; a refugee tribal group of Pennsylvania
A partial bibliography of the archaeology of Pennsylvania and adjacent ...
Pennsylvania at war, 1941-1945
Pennsylvania history and morale
Pennsylvania petroleum, 1750-1872 : a documentary history
Pennsylvania's first year at war, December 7, 1941-December 7, 1942