Nat'l Libr. of Wales Web site, Sept. 1, 2000 (Williams, Aneurin, 1859-1924)
Co-partnership and profit-sharing, 1913 t.p. (Aneurin Williams)
The new companion to the literature of Wales, 1998 (Williams, Iolo Aneurin (1890-1962); son of Aneurin Williams (1859-1924), Liberal MP and prominent figure in the Co-operative Movement)