Thomas (Alan R.)
  • s. xx / s. xxi

Thomas, Alan R., “Networks, nuclei and boundaries in areal dialectology”, in: Ball, Martin J., James Fife, Erich Poppe, and Jenny Rowland (eds.), Celtic linguistics / Ieithyddiaeth Geltaidd: readings in the Brythonic languages. Festschrift for T. Arwyn Watkins, Amsterdam Studies in the Theory and History of Linguistic Science 4.68, Current Issues in Linguistic Theory, Amsterdam: Benjamins, 1990. 25–40.
Thomas, Alan R. [ed.], Methods in dialectology: proceedings of the sixth international conference held at the University College of North Wales, 3rd-7th August 1987, Multilingual Matters 48, Clevedon: Multilingual Matters, 1988.
Thomas, Alan R., “Studying lexical geography”, in: Ball, Martin J. [ed.], The use of Welsh: a contribution to sociolinguistics, Multilingual Matters 36, Clevedon, Philadelphia: Multilingual Matters, 1988. 41–48.
Thomas, Alan R., and Dafydd Roberts [flow charts], Areal analysis of dialect data by computer: a Welsh example, Cardiff: University of Wales Press, 1980. 
comments: with flow charts of computational procedures by Dafydd Roberts
Jones, Morris, and Alan R. Thomas, The Welsh language: studies in its syntax and semantics, Cardiff: University of Wales Press, 1977.
Thomas, Alan R., The linguistic geography of Wales: a contribution to Welsh dialectology, Cardiff: University of Wales Presss for the Board of Celtic Studies, 1973.
Thomas, Alan R., “Arolwg o dafodieithoedd Cymru”, in: Williams, J. E. Caerwyn [ed.], Llên a llafar Môn, Llangefni: Cyngor Gwlad Môn, 1963. 124–131.
Thomas, Alan R., “Astudiaeth seinegol o Gymraeg llafar Dyffryn Wysg”, Unpublished MA thesis: University of Wales, 1958.