HOLT, Brian Phillip. UNIMARC pristatymas Internete: nauji laukai elektroniniams resursams. Aktualu rytoj, [S. l.], p. 36–37, 1999. DOI: 10.51740/rt.vi.635. Disponível em: https://journals.lnb.lt/relevant-tomorrow/article/view/635. Acesso em: 19 bal. 2025.