IFLA/UNESCO Pre-Session Seminar Leipzig, Patte, G., & Sigrún Klara Hannesdóttir. (1984). Library work for children and young adults in the developing countries: Proceedings of the IFLA/UNESCO Pre-Session Seminar in Leipzig, GDR, 10-15 August, 1981. Walter de Gruyter & Co..
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিIFLA/UNESCO Pre-Session Seminar Leipzig, Geneviève Patte, এবং Sigrún Klara Hannesdóttir. Library Work for Children and Young Adults in the Developing Countries: Proceedings of the IFLA/UNESCO Pre-Session Seminar in Leipzig, GDR, 10-15 August, 1981. Hague, Netherlands: Walter de Gruyter & Co., 1984.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিIFLA/UNESCO Pre-Session Seminar Leipzig, et al. Library Work for Children and Young Adults in the Developing Countries: Proceedings of the IFLA/UNESCO Pre-Session Seminar in Leipzig, GDR, 10-15 August, 1981. Walter de Gruyter & Co., 1984.