Griffin, M. I. J. (1887). Thomas FitzSimons: Pennsylvania's Catholic signer of the Constitution of the United States. Philadelphia.
Chicago-viite (17. p.)Griffin, Martin I. J. Thomas FitzSimons: Pennsylvania's Catholic Signer of the Constitution of the United States. Philadelphia, 1887.
MLA-viite (8. p.)Griffin, Martin I. J. Thomas FitzSimons: Pennsylvania's Catholic Signer of the Constitution of the United States. Philadelphia, 1887.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.