For most new golf referees there is no formal training. Malcolm Wadsworth's guide to refereeing matchplay will help you learn the best way to go about it. It is full of tips and hints as to how to go about it, so that you should never feel alone out there. Even if you are an experienced referee you will find there's plenty for you. This is as good as it gets. He covers preparation, the briefing you give to the players, how you score and announce matches, what happens when you have to make a ruling, and many things more.