Grammar, Usage / MLA documentation question! [3]

Well, first of all I was wondering if anyone knew of any good online resources for MLA documentation with in depth how tos.

My main question is this: I'm doing a research paper and I was wondering how to cite something from a website in which the website took the information from somewhere else, namely a much more credible source (a journal is more credible than a website). they provided some simple citation, however I was wondering how I would integrate it into the documentation on my paper. I've tried to get at the original information, but I'm not wanting buy anything.

heres the piece of information:

Alcohol contributes to 100,000 deaths annually, making it the third leading cause of preventable mortality in the US, after tobacco and diet/activity patterns (J McGinnis & W Foege, "Actual Causes of Death in the United States," Journal of the American Medical Association {JAMA}, Vol. 270, No. 18, 11/10/93, p. 2208).

This is from this page: ncadd.org/facts/problems.html

I'm not quoting anything, just using the piece of information..how would I correctly format this on a works cited page as well as an in text citation.

Thanks alot