University referencing help

So I am studying with The Open University. I think referencing is where I am losing most of marks. So was wondering if someone could tell me how to Harvard and Oxford reference properly.

Below is my research paper and the info I intend to use.

PDF Document
Chapter 5: Leadership In Sports
Author: PACKIANATHAN CHELLADURAI

THE MEDIATIONAL MODEL OF LEADERSHIP
The original mediational model of leadership (R. E. Smith, Smoll, & Hunt, 1978) consisted of (a) coach behaviors, (b) players’ perceptions and recollections of those behaviors, and (c) players’ evaluative reactions. The cognitive processes of perceptions, recall, and reactions are as important as the behaviors themselves.

I paraphrase my work. Would this be correct?
Hunt, Smith & Smoll''s (1978) mediation model of leadership is made up of coaching behaviours, players perceptions and recollections of those behaviours and a player's evaluative reactions. These cognitive processes of perceptions, recall and reactions are important as the behaviours themselves.

So how would I go about referencing this? Would I better just using the original quote and if so, how would I go about referencing it?

Many thanks, PR