RFU Publications - These should be available from your society training officer

Become a Rugby Football Union Referee
Competence Based Referee Development System
Coaching Solutions
Coaching Solutions to Referees Problems
Guidance for Referees, Players and Coaches on the Application of Law
A Further Challenge - Carry On Refereeing
Team of Three Touch Judging Booklet
Touch Judging Case Studies
Fit to Referee and Touch Judge
Law 26 Case Studies
Instant Rugby - 5 Minute Guide to the Laws
Instant Rugby - 5 Minute Guide to the Laws - U19 Version
Why the Adviser Went