Primary Legal Sources are the actual law in the form of constitutions, court cases, statutes, and administrative rules and regulations.
1. Statutes (State laws):
Purdon’s Pennsylvania Statutes, Annotated Stack 12
2. Administrative Codes and Regulations:
Pennsylvania Bulletin Stack 13
Pennsylvania Rules of Court Orphan's Court Rules - Reference Desk
3. PA Cases:
West’s Pennsylvania Digest 2d Stack 20 - 21 vols. 59E - 61