Y bachgen a'r alarch
By: addasiad Gruff Roberts o nofel gan Catherine Storr.
Contributors: Roberts, Gruff, 1935-
Series: Gwreiddiau
Publisher: Gomer
Published: 1991
Place of publication: Llandysul
Language: wel
Number of pages: 70
Work titles: The boy and the swan.
Notes: Arg Saesneg gwreiddiol = Original English ed: London: André Deutsch, 1987.

Addasiad Cymraeg o = Welsh adaptation of: The boy and the swan.