RANGANATHAN, S. R. Colon Classification Edition 7 (1971): A Preview. Journal of Information and Knowledge, [S. l.], v. 6, n. 3, p. 193–242, 2002. DOI: 10.17821/srels/1969/v6i3/49068. Disponível em: https://srels.org/index.php/sjim/article/view/49068. Acesso em: 8 apr. 2025.