Williams, D. H. (1982). Welsh history through seals. Amgueddfa Genedlaethol Cymru.
Chicago Style (17th ed.) CitationWilliams, David H. Welsh History Through Seals. Cardiff: Amgueddfa Genedlaethol Cymru, 1982.
MLA (9th ed.) CitationWilliams, David H. Welsh History Through Seals. Amgueddfa Genedlaethol Cymru, 1982.
Warning: These citations may not always be 100% accurate.