http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Siccrwydd ffydd, wedi ei agoryd a'i gymhwyso
sef, sylwedd amryw bregethau a'r Heb.x.22. Gan y Parchedig Ebenezer Erskine, ... Wedi eu gyfieithu i'r Cymraeg ... Gan William Williams
Reproduction of original from the British Library.
English Short Title Catalog, ESTCT134804.
Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. Available via the World Wide Web. Access limited by licensing agreements s2003 miunns