1. W.A. Jackson, K. Rainwater, T. Anderson, T. Lehman, R. Tock, S. Rajagopalan, M. Ridley, August 31, 2004; http://www.waterresources.ttu.edu/final%20report.pdf.
2. California Department of Health Services, December 1, 2004; http://www.dhs.ca.gov/ps/ddwem/chemicals/perchl/earlyfindings.htm.
3. California Department of Health Services, December 1, 2004; http://www.dhs.ca.gov/ps/ddwem/chemicals/perchl/monitoringupdate.htm.
4. Determination of Perchlorate in Tobacco Plants and Tobacco Products
5. Perchlorate in Milk