TY - JOUR TI - Llywelyn ap Gruffudd and the March of Wales JF - Brycheiniog AU - Smith, J. B. UR - http://welshjournals.llgc.org.uk/browse/viewpage/llgc-id:1380216/llgc-id:1383844/llgc-id:1383857/get650 PY - 1982 EP - 22 SP - 9 VL - 20 ER -