APA-referens (7:e uppl.)

Shahan, T. J. Pius the eleventh. [publisher not identified].

Chicago-referens (17:e uppl.)

Shahan, Thomas J. Pius the Eleventh. [Place of publication not identified]: [publisher not identified].

MLA-referens (8:e uppl.)

Shahan, Thomas J. Pius the Eleventh. [publisher not identified].