APA (7e ed.) Bronvermelding

Catholic Church. Pope (1878-1903 : Leo XIII) & Leo XIII, P. (1902). Apostolical Letter of Our Most Holy Lord Leo XIII by Divine Providence Pope =: Sanctissimi Domini Nostri Leonis divina providentia Papae XIII. Littera Apostolica. Apostleship of Prayer.

Chicago (17e ed.) Bronvermelding

Catholic Church. Pope (1878-1903 : Leo XIII) en Pope Leo XIII. Apostolical Letter of Our Most Holy Lord Leo XIII by Divine Providence Pope =: Sanctissimi Domini Nostri Leonis Divina Providentia Papae XIII. Littera Apostolica. New York, N.Y.: Apostleship of Prayer, 1902.

MLA (8e ed.) Bronvermelding

Catholic Church. Pope (1878-1903 : Leo XIII) en Pope Leo XIII. Apostolical Letter of Our Most Holy Lord Leo XIII by Divine Providence Pope =: Sanctissimi Domini Nostri Leonis Divina Providentia Papae XIII. Littera Apostolica. Apostleship of Prayer, 1902.