As soon as you even get your toes wet in the sea of citation-formats, you'll learn there is no "one" standard method for citing electronic resources.  But, just to get you started, as, a basic template, all electronic citations should give at least the following types of information:
 
 

Author or Editor. Date. Title of work. Edition. Available Protocol
     [Type of medium]: <Protocol/Site/Path/File> Additional: retrieval
     information [Access date].
 

To show what this looks like with "real information", here's where I got the template:
 
 

Crouse, Maurice. 22 October 1997. Citing electronic information in
         history papers. Available [Online]: <http://www.people.memphis.
         edu/~mcrouse/elcite.html> [21 December 1997].
  Back to the "Citing Electronic Resources" page