| | Wile, J. and Shannon, M. (2001). The Human Body: Fearfully and |
| | Wonderfully Made. Anderson, IN: Apologia Educational Ministries, Inc. |
| | |
| | Personal Communication: |
| | |
| | Charles Wenzel |
| | |
| | Websites: |
| | |
| | A Citizen’s Guide to Radon |
| | http://www.epa.gov/radon/pubs/citguide.html |
| | |
| | A Quick Radon Detector for the Student |
| | Ion Chambers |
| | http://www.techlib.com/science/ionchamber.htm |
| | |
| | About Antique Vaseline Glass. |
| | http://www.collectorsweekly.com/glassware/vaseline-glass |
| | |
| | Americium-241. http://www.doh.wa.gov/ehp/rp/factsheets/factsheets- |
| | pdf/fs23am241.pdf |
| | |
| | Americium Information |
| | www.ead.anl.gov/ |