RUIZ PÉREZ, R. The concept of bibliographical unit and its importance in the context of two level description and analytical cataloguing. Revista Española de Documentación Científica, [S. l.], v. 14, n. 2, p. 157–177, 1991. DOI: 10.3989/redc.1991.v14.i2.157. Disponível em: https://redc.revistas.csic.es/index.php/redc/article/view/1228. Acesso em: 22 jul. 2024.