BHATTACHARYYA, G. Subject Headings up to the Middle of the 19th Century:A Generalised View. Journal of Information and Knowledge, [S. l.], v. 11, n. 1, p. 29–34, 1974. DOI: 10.17821/srels/1974/v11i1/62719. Disponível em: https://srels.org/index.php/sjim/article/view/62719. Acesso em: 22 feb. 2025.