APA (7th ed.) Zitazioa

Information Systems. Pergamon Press - An Imprint of Elsevier Science.

Chicago Style (17th ed.) Zitazioa

Information Systems. Pergamon Press - An Imprint of Elsevier Science.

MLA (9th ed.) Zitazioa

Information Systems. Pergamon Press - An Imprint of Elsevier Science.

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