18 records – page 1 of 2.
The beginnings of the petroleum industry, sources and bibliography
A checklist of Pennsylvania newspapers
The citizen's stake in the labor union problem
The cult of competency : address at midwinter commencement of ...
Industrial management in a republic
Inventory of the county archives of Pennsylvania: Lehigh County
Lebanon, its economic, political and social development between 1845-1865 : ...
A partial bibliography of the archaeology of Pennsylvania and adjacent ...
Pennsylvania history and morale
Pennsylvania's first year at war, December 7, 1941-December 7, 1942