The geology of Pennsylvania; a government survey: with a general view of the geology of the United States, essays on coal-formation and its fossils, and a description of the coalfields of North America and Great Britain,

Vol. II, pt. I-II, paged continuously.

Pennsylvania workmen's compensation and occupational disease laws.

Vols. for 19__ issued as the department's Special bulletin.

Gesetze der General assembly des staats Pennsylvanien passirt in der sitzung von.

Mode of access: Internet.

A changing psychology in social case work,

Published also as thesis (PH.D.) University of Pennsylvania.

Study of the feasibility of a regional railroad system for northwest Pennsylvania /

Mode of access: Internet.

Operatic performances in England before Handel,

"Baylor University bulletin no.4."

Pennsylvania library and museum notes.

Publication suspended May 1917 to December 1919, inclusive.

The Pennsylvania medical journal.

Description based on: Vol. 26, no. 6 (Mar. 1923); title from cover.

Danville, Montour County, Pennsylvania : a collection of historical and biographical sketches /

Includes index.

Bulletin of the Ayer Clinical Laboratory of the Pennsylvania Hospital.

No. 13-18 called also v.3

The Pennsylvania magazine of history and biography.

Some issues also have a theme title.

Pennsylvania, the keystone : a short history /

Bibliography: p. 6.

The relations of Pennsylvania with the British government, 1696-1765,

"Bibliographical notes": p. 397-407.

Welsh settlement of Pennsylvania,

Mode of access: Internet.

The story of Lancaster: old and new; being a narrative history of Lancaster, Pennsylvania, form 1730 to the centennial year 1918,

Mode of access: Internet.