(2015). Free knowledge: Confronting the commodification of human discovery / edited by Patricia W. Elliott & Daryl H. Hepting.
Čikaški stil citiranja (17. izdanje)Free Knowledge: Confronting the Commodification of Human Discovery / Edited by Patricia W. Elliott & Daryl H. Hepting. 2015.
MLA način citiranja (9. izdanje)Free Knowledge: Confronting the Commodification of Human Discovery / Edited by Patricia W. Elliott & Daryl H. Hepting. 2015.
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