Information sur la source
Ancestry.com. Nicholson's Cambrian traveller's guide, in every direction [base de données en ligne]. Provo, UT: Ancestry.com Operations Inc, 2004.Données originales : Nicholson, George,. Nicholson's Cambrian traveller's guide, in every direction : containing remarks made during many excursions in the principality of Wales. London: Printed for Longman, Orme, Brown, Green, & Longmans, 1840.
