International Conference on Methods in Dialectology (6th : 1987 : University College of North Wales) & Thomas, A. R. (1988). Methods in dialectology: Proceedings of the Sixth International Conference held at the University College of North Wales, 3rd-7th August 1987. Multilingual Matters.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Conference on Methods in Dialectology (6th : 1987 : University College of North Wales) και Alan R. Thomas. Methods in Dialectology: Proceedings of the Sixth International Conference Held at the University College of North Wales, 3rd-7th August 1987. Clevedon, Avon, Eng: Multilingual Matters, 1988.
Παραπομπή σε μορφή MLA (9th εκδ.)International Conference on Methods in Dialectology (6th : 1987 : University College of North Wales) και Alan R. Thomas. Methods in Dialectology: Proceedings of the Sixth International Conference Held at the University College of North Wales, 3rd-7th August 1987. Multilingual Matters, 1988.