APA (7e ed.) Bronvermelding

ebrary, Inc, & Swanson, R. N. (2006). Promissory notes on the treasury of merits: Indulgences in late medieval Europe. Brill.

Chicago (17e ed.) Bronvermelding

ebrary, Inc, en R. N. Swanson. Promissory Notes on the Treasury of Merits: Indulgences in Late Medieval Europe. Leiden ; Boston: Brill, 2006.

MLA (9e ed.) Bronvermelding

ebrary, Inc, en R. N. Swanson. Promissory Notes on the Treasury of Merits: Indulgences in Late Medieval Europe. Brill, 2006.