Defnyddiwr:David Eppstein

Ni chefnogir cynnwys y dudalen mewn ieithoedd eraill.
Oddi ar Wicipedia

See my user page on the English Wikipedia, where I spend most of my wiki-time.

What you see on this page was copied from https://meta.wikimedia.org/wiki/User:David_Eppstein.
Wedi dod o "https://cy.wikipedia.org/wiki/Defnyddiwr:David_Eppstein"