Ych! maen nhw'n neis
Subtitle: barddoniaeth i blant
By: golygydd: Myrddin ap Dafydd ; [lluniau: Siôn Morris].
Contributors: Myrddin ap Dafydd.; Morris, Siôn.
Series: Llyfrau lloerig
Publisher: Gwasg Carreg Gwalch
Published: 1998
Place of publication: Llanrwst
Language: wel
Number of pages: 72
Subjects: Children's poetry, Welsh.