MCCALLUM, Sally H.; GODWIN, James L. Statistics on Headings in the MARC File. Information Technology and Libraries, [S. l.], v. 14, n. 3, p. 194–201, 1981. DOI: 10.6017/ital.v14i3.5293. Disponível em: https://ital.corejournals.org/index.php/ital/article/view/5293. Acesso em: 30 apr. 2024.