National Library (Singapore), ebrary, Inc, International Newspaper Conference, World Library and Information Congress, & Walravens, H. (2008). The impact of digital technology on contemporary and historic newspapers: Proceedings of the International Newspaper Conference, Singapore, 1 - 3 April 2008, and papers from the IFLA World Library and Information Congress, Québec, Canada, August, 2008. Saur.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Library (Singapore), Inc ebrary, International Newspaper Conference, World Library and Information Congress, و Hartmut Walravens. The Impact of Digital Technology on Contemporary and Historic Newspapers: Proceedings of the International Newspaper Conference, Singapore, 1 - 3 April 2008, and Papers from the IFLA World Library and Information Congress, Québec, Canada, August, 2008. München: Saur, 2008.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Library (Singapore), et al. The Impact of Digital Technology on Contemporary and Historic Newspapers: Proceedings of the International Newspaper Conference, Singapore, 1 - 3 April 2008, and Papers from the IFLA World Library and Information Congress, Québec, Canada, August, 2008. Saur, 2008.