HOFFMAN, Herbert H. A Structure Code for Machine Readable Library Catalog Record Formats. Information Technology and Libraries, [S. l.], v. 14, n. 2, p. 112–116, 1981. DOI: 10.6017/ital.v14i2.5283. Disponível em: https://ital.corejournals.org/index.php/ital/article/view/5283. Acesso em: 29 apr. 2024.