(1978). Trioedd ynys Prydein [kymr.u.engl.] The Welsh triads.
Chicago Style (17th ed.) CitationTrioedd Ynys Prydein [kymr.u.engl.] The Welsh Triads. 1978.
MLA (9th ed.) CitationTrioedd Ynys Prydein [kymr.u.engl.] The Welsh Triads. 1978.
Warning: These citations may not always be 100% accurate.