International Federation of Library Associations, ebrary, Inc, & Walravens, H. (2011). Newspapers: Legal deposit and research in the digital era. De Gruyter.
Cita Chicago (17th ed.)International Federation of Library Associations, Inc ebrary, i Hartmut Walravens. Newspapers: Legal Deposit and Research in the Digital Era. Berlin: De Gruyter, 2011.
Cita MLA (9th ed.)International Federation of Library Associations, et al. Newspapers: Legal Deposit and Research in the Digital Era. De Gruyter, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.