APA (7e ed.) Bronvermelding

Freiberg, W. A. (1947). A guide to the cathedral. Messenger Pub. Co..

Chicago (17e ed.) Bronvermelding

Freiberg, Walter Anthony. A Guide to the Cathedral. Covington, Ky.: Messenger Pub. Co., 1947.

MLA (8e ed.) Bronvermelding

Freiberg, Walter Anthony. A Guide to the Cathedral. Messenger Pub. Co., 1947.