KOUSTAS, Nikolaos et al. Commercial advertising in Greek libraries. Qualitative and Quantitative Methods in Libraries, [S.l.], v. 8, n. 4, p. 447-456, dec. 2019. ISSN 2241-1925. Available at: <http://www.qqml.net/index.php/qqml/article/view/579>. Date accessed: 03 may 2024.