APA (7th ed.) Citation
Clark, A. (2009). Practical Plone 3: A beginner's guide to building powerful websites. Packt Publishing Ltd..
Chicago Style (17th ed.) Citation
Clark, Alex. Practical Plone 3: A Beginner's Guide to Building Powerful Websites. Birmingham, U.K.: Packt Publishing Ltd., 2009.
MLA (9th ed.) Citation
Clark, Alex. Practical Plone 3: A Beginner's Guide to Building Powerful Websites. Packt Publishing Ltd., 2009.
Warning: These citations may not always be 100% accurate.