Erwogion y Ffydd: neu, Hanes Crefydd y genedl Gymreig, o'r diwygiad Protestanaidd hyd yr amser presennol ... / 
Peter, John, of Bala.
Pryse, Robert John, called Gweirydd ap Rhys.
Llundain, 
[1878-1884]
Item records and volume number generated programmatically as part of an external digitisation project