APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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