Jucunda semper. [Encycliek 8 sept. 1894].

MLA

Leo. Jucunda Semper. [encycliek 8 Sept. 1894]. Fribourg: Ed. St-Paul, 1958.

APA

Leo, L. (1958). Jucunda semper. [Encycliek 8 sept. 1894]. Fribourg: Ed. St-Paul.

Chicago

Leo Jucunda Semper. [encycliek 8 Sept. 1894]. Fribourg: Ed. St-Paul, 1958.