I love this simple, interactive guide to the Harvard Referencing System as if has every eventuality clearly covered - a bit late now to get to it 30 months AFTER I started my Masters with The OU!
I had to get this right
McCall, M., Eichinger, R.W and Lombardo, M.M., 1996 The Career Architect Development Planner, 3rd edition (The Leadership Architect Suite).
Source: M. McCall, R. Eichinger & M. Lombardo, Princeton's Center for Creative Leadership
I'd even give a link: