References

Curie, Eve. Madame Curie. New York: Doubleday & Company, Inc. 1937.

Heiserman, David L. Exploring Chemical Elements and Their Compounds. New York: Tab Books. 1992.

Winter, Mark. http://www.shef.ac.uk/chemistry/web-elements/nofr-uses/Ra.html.1998. (22. Feb. 1998).

"Radium." The Merck Index. 12th ed. Merck Research Labratories. New Jersey. Whitehouse Station: 1996.

Daintith, John editor. A Dictionary of Chemistry. Oxford: Oxford University Press. 1996.