The Rise and Fall of Union Classification. Theological Librarianship, [S. l.], v. 6, n. 1, p. 21–28, 2012. DOI: 10.31046/tl.v6i1.254. Disponível em: https://serials.atla.com/theolib/article/view/2294. Acesso em: 10 apr. 2025.