Galwad at Orseddfaingc y Grâs
Subtitle: fel na'n condemnir o flaen Gorseddfaingc Barn: neu, Ymddiddanion ynghylch Gweddi. Yr ail argraphiad
Publisher: Argraphwyd gan Joan Olfir
Published: 1750
Place of publication: Llundain
Language: wel
Number of pages: 144