ebrary, Inc, & Walravens, H. (2008). Newspapers collection management: printed and digital challenges: Proceedings of the International Newspaper Conference, Santiago de Chile, April 3-5, 2007. Saur.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रebrary, Inc, और Hartmut Walravens. Newspapers Collection Management: Printed and Digital Challenges: Proceedings of the International Newspaper Conference, Santiago De Chile, April 3-5, 2007. München: Saur, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्रebrary, Inc, और Hartmut Walravens. Newspapers Collection Management: Printed and Digital Challenges: Proceedings of the International Newspaper Conference, Santiago De Chile, April 3-5, 2007. Saur, 2008.
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