Clark, D. J. (1991). The Irish in Pennsylvania: A people share a commonwealth. University Park, Pa..
Chicago Style (17th ed.) CitationClark, Dennis J. The Irish in Pennsylvania: A People Share a Commonwealth. University Park, Pa., 1991.
Cita MLAClark, Dennis J. The Irish in Pennsylvania: A People Share a Commonwealth. University Park, Pa., 1991.
Atenció: Aquestes cites poden no estar 100% correctes.