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3. Allen, E., McKeever, M., Mitchum, J.: The Energy Yardstick: Using PLACE3S to Create More Sustainable Communities. California Energy Commission, Sacramento, CA, (1995). Available via the J. Marriott Library, University of Utah. Retrieved 25 September 2006 from http://content.lib.utah.edu/cdm4/browse.php?CISOROOT = /FHWA
4. American Farmland Trust: Alternatives for Future Urban Growth in California’s Central Valley. (Author, Washington, DC, 1995)
5. Anderson, J.E. Public Policymaking, 6th ed. Houghton Mifflin, New York (2006)