HUMMEL, P. Library Advocacy in Hard Times. OLA Quarterly, [S. l.], v. 18, n. 2, p. 4–5, 2012. DOI: 10.7710/1093-7374.1352. Disponível em: https://journals3.oregondigital.org/olaq/article/view/vol18_iss2_3. Acesso em: 18 may. 2024.