Bibliography

Wikipedia. Melissa officinalis. (28 August 2014) Wikimedia Foundation,  Retreved from: http://en.wikipedia.org/wiki/Melissa_officinalis

Ehrlich, Steven. Lemon Balm. (03/05/2011) The University of Maryland Medical Center. Retrieved from:

http://umm.edu/health/medical/altmed/herb/lemon-balm