APA-referens (7:e uppl.)

Ryan, J. A., & Boland, F. J. (1940). Catholic principles of politics: Rev. ed. of "The state and the church.". The Macmillan company.

Chicago-referens (17:e uppl.)

Ryan, John A., och Francis J. Boland. Catholic Principles of Politics: Rev. Ed. of "The State and the Church.". New York: The Macmillan company, 1940.

MLA-referens (8:e uppl.)

Ryan, John A., och Francis J. Boland. Catholic Principles of Politics: Rev. Ed. of "The State and the Church.". The Macmillan company, 1940.