BHATTACHARYYA, G. General Theory of Library Classification and Classifying According to UDC. Journal of Information and Knowledge, [S. l.], v. 9, n. 2, p. 197–228, 1972. DOI: 10.17821/srels/1972/v9i2/49223. Disponível em: https://srels.org/index.php/sjim/article/view/49223. Acesso em: 30 nov. 2024.