MLA Endnotes Formatting Help?

Okay, so I'm doing endnotes for this essay I wrote, and I need a bit of help with the format. I've literally been looking for 30 minutes now how to do this, and decided it would liekly be a better use of my time to phone a friend :). So, I have a variety of internet resources that have no authors, yet all have the same title. The publishers (ie. Encyclopedia Britannica) are different, however. Does anybody know how I distinguish between these sources when they are the repeat (aka. when its the second of third time I'm putting them)? Thanks for your help.