APA (7th ed.) Citation

Practising Law Institute, Lesser, L. E., Levi, S. D., & Rosen, L. (2009). Open source and free software 2009: Benefits, risks and challenges in today's economic environment [ebook]. Practising Law Institute.

Chicago Style (17th ed.) Citation

Practising Law Institute, Lori E. Lesser, Stuart D. Levi, and Lawrence Rosen. Open Source and Free Software 2009: Benefits, Risks and Challenges in Today's Economic Environment [ebook]. New York, N.Y.: Practising Law Institute, 2009.

MLA (9th ed.) Citation

Practising Law Institute, et al. Open Source and Free Software 2009: Benefits, Risks and Challenges in Today's Economic Environment [ebook]. Practising Law Institute, 2009.