Welsh Rugby Union. (1983). The Principles of rugby football : a manual for coaches and referees : based on papers delivered at the Welsh Rugby Union centenary international conference for coaches and referees: A manual for coaches and referees : based on papers delivered at the Welsh Rugby Union centenary international conference for coaches and referees. Allen & Unwin.
Chicago Style (17th ed.) CitationWelsh Rugby Union. The Principles of Rugby Football : A Manual for Coaches and Referees : Based on Papers Delivered at the Welsh Rugby Union Centenary International Conference for Coaches and Referees: A Manual for Coaches and Referees : Based on Papers Delivered at the Welsh Rugby Union Centenary International Conference for Coaches and Referees. London: Allen & Unwin, 1983.
MLA (9th ed.) CitationWelsh Rugby Union. The Principles of Rugby Football : A Manual for Coaches and Referees : Based on Papers Delivered at the Welsh Rugby Union Centenary International Conference for Coaches and Referees: A Manual for Coaches and Referees : Based on Papers Delivered at the Welsh Rugby Union Centenary International Conference for Coaches and Referees. Allen & Unwin, 1983.