* [http://www.questia.com/library/science-and-technology/epa.jsp annotated bibliography]
* [http://www.amazon.com/Environmental-Protection-Agency-Questions-Clinton/dp/book-citations/0195086732/ref=sid_dp_av?ie=UTF8&citeType=cited#cited additional books]
==External links==
* http://www.foxnews.com/politics/2013/01/31/despite-court-ruling-epa-raises-biofuel-estimate/
==References==