Suggest an edit10:00Modern Mathematics: Programme 16: Algebraic Structure-SubgroupsBBC One Wed 30th Jun 1965, 10:00 on BBC One LondonFor SchoolsPreviously shown in June 1964Repeated on Thursday at 10.23 a.m.(to 10.20)ContributorsPresented by:Douglas QuadlingDirector:Edward GoldwynEditor:Norman Hyland Source: Radio Times Suggest an edit