Pethau rhyfedd
Subtitle: rhan o deunydd Project Ehangu Gorwelion.
Series: Ehangu gorwelion
Publisher: Canolfan Astudiaethau Iaith
Published: 1990
Place of publication: Aberystwyth
Language: wel
Number of pages: 60
Subjects: Curiosities and wonders.; Welsh language -- Study and teaching (Secondary)