google.com/books?id=-4ndyH7u6T0C&pg=PA179 ^ a b Bisson, Peter and Wondzell, Steven. "Olympic Experimental State Forest Synthesis of Riparian Research and Monitoring"
ISBN 978-1-55500-050-9 Jones, Glyn E. (1984), “The distinctive vowels and consonants of Welsh”, in Martin J. Ball and Glyn E. Jones, Welsh Phonology: Selected
0-679-76490-9 Hitchens, Peter, The Abolition of Britain. (1999) ISBN 0-7043-8117-6 Jones, E. Michael, Degenerate Moderns: Modernity As Rationalized Sexual Misbehavior