Welsh ( pp. 359-426 ch. 9 ) . Awbery, Gwenllian (2009) · In The Celtic Languages edited by Ball, Martin J. and Nicole Müller · Routledge

The sociolinguistic context of Welsh ( pp. 650-711 ch. 14 ) . (2009) · In The Celtic Languages edited by Ball, Martin J. and Nicole Müller ·