BHATTACHARYYA, G. A General Theory of Subject Headings. Journal of Information and Knowledge, [S. l.], v. 11, n. 1, p. 23–29, 1974. DOI: 10.17821/srels/1974/v11i1/62701. Disponível em: https://srels.org/index.php/sjim/article/view/62701. Acesso em: 9 jan. 2025.