I've just looked up the syllabus and "bibliography" isn't even mentioned... neither is anything about "correct referencing" though the sophistication of the course would mean that its advisable. Bibliography, as far as I can tell is not a necesity, and if you're going to include one where would you put it? Journal? RS?
I have a bibliography of sorts in my journal because as part of the 'report' assesment task we had to write up a bibliography... though it doesn't have publishing companies or any of that.
EDIT- Right, I was looking at a different part of the syllabus... like Jayphen said, it is just one of the suggestions for stuff to put in your journal... They don't even read the journals anyway, so I wouldn't be worried if you haven't done one, or don't want to do one.