Bywyd cerddorol Gwstaf Gwadd
By: darluniwyd gan Kathryn Meyrick ; addasiad Cymraeg gan Gwenan Williams.
Contributors: Williams, Gwenan.
Publisher: Child's Play (International)
Published: 1990
Place of publication: (Swindon)
Language: wel
Number of pages: 31
Work titles: The musical life of Gustav Mole.
Notes: Arg Saesneg gwreiddiol = Original English ed: Child's Play, 1989.

Addasiad Cymraeg o = Welsh adaptation of: The musical life of Gustav Mole.