BUCKLAND, Michael K.; GALLIVAN, Bernard. Circulation Control: Off-line, On-line, of Hybrid. Information Technology and Libraries, [S. l.], v. 5, n. 1, p. 30–38, 1972. DOI: 10.6017/ital.v5i1.5725. Disponível em: https://ital.corejournals.org/index.php/ital/article/view/5725. Acesso em: 6 may. 2024.