CIC/1917, can. 0004
Sources
1917 Codex Iuris Canonicis, can. 4, in: www.jgray.org (Last access: 08.03.2016).
Codex Iuris Senior, can. 4, in: www.catho.org (Last access: 08.03.2016).
GASPARRI, Pietro (Hg.), Codex Iuris Canonici Pii X Pontificis Maximi iussu
digestus, Benedicti Papae XV auctoritate promulgatus, Rom 1917, can. 4., S. 1, in: archive.org (Last access: 08.03.2016).