prewriting 2

Shengnan Xue Tue Apr 23, 2013 10:02 pm

Aspartame's toxic contents. (2005, The Ecologist, 35, 48-48. Retrieved from
http://search.proquest.com/docview/234929105?accountid=14576

Mattes, Richard D., and Barry M. Popkin. "Nonnutritive Sweetener Consumption in Humans: Effects on
Appetite and Food Intake and Their Putative Mechanisms." The American Journal of Clinical Nutrition (2008):. Web. http://ajcn.nutrition.org/content/89/1/1.full.pdf+html

Henkel, John. "Sugar Substitutes." FDA Consumer 33.6 (1999): 12. Academic Search Elite. Web. 23 Apr. 2013.
http://ehis.ebscohost.com/ehost/detail?sid=1ca0a987-5a66-4b08-83f5-8cd724e4a4c3%40sessionmgr10&vid=1&hid=7&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=afh&AN=2448583

Cardwell, Glenn. "The TRUTH about Artificial Sweeteners." Australasian Science 2005: 35-7. ProQuest. Web. 23 Apr. 2013 .
from http://search.proquest.com/docview/223711799?accountid=14576

Asp, Karen. "3 Truths about Artificial Sweeteners." HANDBOOK: YOUR DIET 206.5 (2006): 98. Web.
<http://www.lexisnexis.com/hottopics/lnacademic/?verb=sr&csi=312788&sr=HLEAD(3+truths+about+artificial+sweeteners)+and+date+is+May+1%2C+2006>.

I am so confused about the citation format.