OGBODO, Catherine. Preservation of Information Sources in Polytechnic Libraries in South East States of Nigeria. Journal of Research in Education and Society (JRES) , [S. l.], v. 2, n. 1, p. 230–235, 2011. Disponível em: http://icidr.org.ng/index.php/Jres/article/view/1182. Acesso em: 19 sep. 2024.