Hylén, J. (2007). Giving knowledge for free: The emergence of open educational resources ([1st ed.].). OECD. https://doi.org/10.1787/9789264032125-en
Chicago-Zitierstil (17. Ausg.)Hylén, Jan. Giving Knowledge for Free: The Emergence of Open Educational Resources. [1st ed.]. Paris: OECD, 2007. https://doi.org/10.1787/9789264032125-en.
MLA-Zitierstil (9. Ausg.)Hylén, Jan. Giving Knowledge for Free: The Emergence of Open Educational Resources. [1st ed.]. OECD, 2007. https://doi.org/10.1787/9789264032125-en.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.