http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Dirgelwch i raw iw ddeall ac i eraill iw watwar
sef tri aderyn yn ymddiddan, ... neu arwydd i annerch y Cymru. Yn y flwyddyn 1653, cyn dyfod, 666
Reproduction of original from the Harvard University Houghton Library.
English Short Title Catalog, ESTCN18352.
Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. Available via the World Wide Web. Access limited by licensing agreements s2003 miunns