1. Vegetarian Resource Group. How many vegetarians are there? Available at: http://www.vrg.org/journal/vj2000may/2000maypoll.htm. Accessed November 30, 2000.
2. National Institute of Nutrition. Tracking Nutrition Trends. Ottawa: National Institute of Nutrition, 1994.
3. Health effects and prevalence of vegetarianism;White;West J Med.,1994
4. Teenage vegetarianism;Worsley;Appetite,1998
5. The vegetarian option: varieties, conversions, motives and careers;Beardsworth;Sociol Rev.,1992