Glöyn byw y peunog
By: Jan Ethelberg ; addasiad Cymraeg (o'r Saesneg gan) Dan L. James.
Contributors: James, Dan Lynn.
Series: Golwg agos ar natur
Publisher: A. and C. Black
Published: 1979
Place of publication: Llundain (i.e. London)
Language: wel
Number of pages: 20
Subjects: Peacock butterfly -- Juvenile literature.; Butterflies -- Case studies -- Juvenile literature.
Work titles: Drengen og Sommerfuglen.
Notes: Translation of, 'The life of a butterfly'. 1976. - Originally published as 'Drengen og Sommerfuglen'. Copenhagen , Borgen, 1971.