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Open Access Book
Unum necessarium: sive practica definitio orationis. Ymarferol Athrawiaeth Gweddi yn Dangos bêth (ac mor angenrheidiol) yw'r Ddyledfwydd bwyffawr honno: Mewn trathawd byrr, O waith Joan Thomas, Y hwaelaf a'r anheilyngaf o weision Crîst.
Author
: Thomas, John, fl. 1680.
Source
:
Oxford Text Archive
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