Here is an example of a few entries from a Harvard bibliography:
Kress, G and van Leeuwen, T. (1996): Reading Images: The Grammar of Visual Design. London: Routledge.
Lea, M.R. and Street, B. (1998) Student Writing in Higher Education: an academic literacies approach. Studies in Higher Education 23 (2), 157-172.
Leavis, F.R. (1948) Education and the University. New Edition. London: Chatto & Windus.
Snapper, G. (2009) Beyond English Literature A Level: The Silence of the Seminar? English in Education 43 (3), 192-210.
This brief explanation does not cover all instances. For example, when quoting a web page, you may need to use the website name as the author's name. You also need to give the URL, and finally to indicate in brackets when you accessed the page: for example, (accessed 12 July 2012). But, no matter what the situation, you should be able to work things out quite easily by simply looking at the way the professionals do it. There is also a wealth of advice on the Web.
Contact me if you would like particular help.