references to documents published electronically on the internet must be treated in the same way as those from printed sources, with the title of the document enclosed in quotation marks and the source indicated in your notes. Many documents may appear in more than one site on the Internet. You are advised to cite only those sites which you have actually visited. Give the author’s name (if known), the full title of the document, the document date (if indicated), the full web address and record the precise date of your visit (this is essential, since many sites are short-lived and others are changed with considerable frequency). (University of London guidelines for essay writing)
Having said that, the list of references that you have sent us is a common bibliography which should go at the end of your paper. Whereas, if you want to use it as a footnote, you should list the authors’ forename first and their surname second (also in the footnote the forename and the surname are not separated by a comma), but otherwise your footnote entry should be identical to your bibliographical entries.
Your third entry is fine, there isn’t much you could do, for there isn’t an editor of that text and ergo one should (as you correctly did) cite all the names.
Whereas,
your fourth entry can be shortened up:
Federman, Joel (Edited by), “National Television Violence Study” in: Executive Summary Volume 3, University of California, Santa Barbara.
http://www.ccsp.ucsb.edu/execsum.pdf (Last visited: 23 Feb. 2004).
Last but not least, as Tdol has already pointed out, there is no need to add comments about the work you cite, until and unless theyspecifically ask you to do that.
A good ref. book could be:
How to Write Your Term Paper by Elinor Yaggy