APA引文

Organisation for Economic Co-operation and Development, Centre for Educational Research and Innovation, & ProQuest (Firm). (2007). Giving knowledge for free: The emergence of open educational resources. Organisation for Economic Co-operation and Development.

Chicago Style (17th ed.) Citation

Organisation for Economic Co-operation and Development, Centre for Educational Research and Innovation, and ProQuest (Firm). Giving Knowledge for Free: The Emergence of Open Educational Resources. [Paris, France?]: Organisation for Economic Co-operation and Development, 2007.

MLA引文

Organisation for Economic Co-operation and Development, et al. Giving Knowledge for Free: The Emergence of Open Educational Resources. Organisation for Economic Co-operation and Development, 2007.