HELMER, N. The state of Oregon preservation in 1995: A survey by the Oregon Library Association’s special committee on preservation. OLA Quarterly, [S. l.], v. 3, n. 2, p. 2–5+, 1997. DOI: 10.7710/1093-7374.1442. Disponível em: https://journals3.library.oregonstate.edu/olaq/article/view/vol3_iss2_2. Acesso em: 3 jul. 2024.