5Defending Illusions t Federal Protection of Ecosystems,ISBN: 0847694216: Author: Allan K. Fitzsimmons:Rowman & Littlefield,Date published: August 1999.
6The ecosystem illusion. (Review) (book review): An article from: Issues in Science and Technology,Publisher: National Academy of Sciences,Fall 2000 ISBN: B0008JBC1Y; Author, Mark Sagoff. http://www.issues.org/17.1/br_sagoff.htm.
