APA-referens (7:e uppl.)

Heim, B. B. (1978). Heraldry in the catholic church, its origin, customs and laws. van Duren.

Chicago-referens (17:e uppl.)

Heim, Bruno Bernard. Heraldry in the Catholic Church, Its Origin, Customs and Laws. Gerrards Gross: van Duren, 1978.

MLA-referens (8:e uppl.)

Heim, Bruno Bernard. Heraldry in the Catholic Church, Its Origin, Customs and Laws. van Duren, 1978.