At the front of my reference for referencing (!)it says you can do some things any number of ways - but you have to be consistent - that is, use p. or pg. but don't swap between the two. In the text I always put the date after the name for every ref and then the page no if it is a direct quote e.g. - Smith, J. (2003, p.7)if before the quote and (Smith, J., 2003, p.7)if after the quote. et. al. should always be italicised, as should ibid, not used ibid myself anywhere butI've come across it in articles referenced using the Harvard system. I think its Bournemouth uni that has the definitive Harvard ref stuff on its website where you can find how to reference almost anything - or so I've heard anyway refs are a pain, especially those that are a bit out of the ordinary, I'm making sure I do them as I go along