LANGUIDGE, D. W. Book Selection and the Five Laws. Journal of Information and Knowledge, [S. l.], v. 5, n. 3, p. 193–199, 1968. DOI: 10.17821/srels/1968/v5i3/49194. Disponível em: https://srels.org/index.php/sjim/article/view/49194. Acesso em: 28 apr. 2024.