Could Someone Please Help Me Put This in MLA Format?

Question by : Could someone please help me put this in MLA format?
This is my first time of doing bibliography and I almost have no clue how to do it except that in the book it says, if it’s a website article, then it has to be in the form of:
Last name, First Name. “Article title.” The Website (Italic). Sponsor of the website (This is the one I can’t find), Date published. Date accessed.

Now, I’ll try to do it and I’ll show what I can and what I can’t find:

1st website:
http://serendip.brynmawr.edu/bb/neuro/neuro98/202s98-paper3/Hirst3.html

Hirst, Jeremy. “Biological Causes of Anorexia Nervosa
and Bulimia Nervosa.” Serendip. (Who is the sponsor of the website? Could it just be Serendip?), (I don’t see any date so I’ll just put n.d). (The date I accessed it).

2nd website:
http://www.ccnp.ca/eating-steiger-la.pdf

Steiger, Howard. “Eating disorders and the serotonin connection:
state, trait and developmental effects”. Ccnp. (As simple as that?)
(Sponsor of the website, is it what Ccnp stand for? So could it be Canadian College of Neuropsychopharmacology?), May 13, 2003. (Date accessed).

3rd website:
http://www.cma.ca/multimedia/staticContent/HTML/N0/l2/jpn/vol-30/issue-5/pdf/pg335.pdf

Bulik,Cynthia. “Exploring the gene–environment nexus
in eating disorders.” Cma. Canadian Medical Association (I went to cma.ca and I found out that it stands for Canadian Medical association, so could this be a sponsor?), June 28, 2005. (Date accessed).

4th website:
http://eatingdisorders.about.com/od/riskfactors/a/heritability.htm

Tiemeyer, Matthew. “The Genetic Influence: Heritability of Eating Disorders.” About (Again, it looks too simple!). (I have no clue who the sponsor is, could it just be ‘About’ because I can’t find it, it also says ‘Health’s Disease and Condition content is reviewed by the Medical Review Board’ so what is that supposed to mean?), December 10, 2008. (Date accessed).

All you have to do is click on the links and see if you could help me especially with the sponsors. Thank you so much in advance!

Best answer:

Answer by purplekitty627
http://owl.english.purdue.edu/owl/resource/557/09/

If you can’t find something, leave it blank. If it’s not there it’s not there, as far as citing goes.

Answer by Charlotte M
use this site and follow the steps. if you don’t have all the information leave it blank and it will site it for you accordingly.
www.citationmachine.net

Miss DC 2012 speaks on struggle with eating disorder, body image campaign
According to the National Eating Disorder Association (NEDA), 90-95 percent of people who suffer from anorexia nervosa are girls and women. After going through the affliction herself, Wozniak decided to use her title as Miss D.C. for a good cause. Read more on The Eagle (registration)

No One Wants To Listen To Your Fat Talk – The Inquisitr
Based on the results of a University of Notre Dame study, recently presented at the Midwestern Psychological Association's annual conference, no one likes a fat-talker – more specifically a person who constantly, self-disparagingly remarks about their … Read more on The Inquisitr