Clark, D. J. (1991). The Irish in Pennsylvania: A people share a commonwealth. University Park, Pa..
Chicago-стиль цитированияClark, Dennis J. The Irish in Pennsylvania: A People Share a Commonwealth. University Park, Pa., 1991.
MLA-цитированиеClark, Dennis J. The Irish in Pennsylvania: A People Share a Commonwealth. University Park, Pa., 1991.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.