Edwards, Rebecca. “Sarah Hill, ‘Blewytirhwng?’ The Place of Welsh Pop Music. Aldershot and Burlington, VT: Ashgate, 2007. 248 Pp. ISBN 978-0-7546-5898-6 (hbk). £50.00”. Popular Music History, vol. 4, no. 3, Feb. 2011, pp. 351–354, https://doi.org/10.1558/pomh.v4i3.351.