Llyfr y resolution, neu hollawl ymroad, i roir cwbl on bryd, an meddwl, an hôll nerth, an Gallu. Cyfieithwyd or Saesnaeg ir Gymraeg gan Doctor John Davies (Welsh Edition)


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When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.