Hanes troedigaeth y wraig o Samaria ... Wedi ei osod allan mewn pregeth ar Ioan iv. 29. Gan y parch. Ralph Erscin, ...
Erskine, Ralph,1685-1752.
Machynlleth : argrapnwyd gan Titus Evans,
1792.
ESTC
Also reproduced on microfilm. Woodbridge, CT: Research Publications, Inc., 1986. The Eighteenth Century ; reel 3651, no. 07.