For my project I rely on several sources of information including such that is not peer reviewed (conference proceedings, industry reports, master thesis, interviews). I wonder if I should mark them as being not peer reviewed in the bibliography, for example adding the nature of the publication:
Boo 2013: "A question on grey literature". Stack Exchange April 2013. Forum post.
Boo 2013: "A question on grey literature". Stack Exchange April 2013. (not peer reviewed).
Are those sources included within the list of peer reviewed articles or is a separate chapter within the bibliography necessary (as is often done for websites)?