Gwydr
By: Ruth Thomson ; addaswyd gan Sian Owen ; ffotograffau gan Neil Thomson
Contributors: Owen, Sian, 1965-2013; Thomson, Neil, 1948 August 8-
Series: Ailddefnyddio ac ailgylchu
Publisher: @ebol
Published: 2008
Place of publication: Aberystwyth
Language: wel
Number of pages: 30
ISBN-13: 9781905255832
Subjects: Glass waste; Juvenile literature; Recycling
Work titles: Glass
Notes: Yn cynnwys mynegai = Includes index.

Cyhoeddwyd yn wreiddiol = Originally published: London : Franklin Watts, 2006.

Addasiad Cymraeg o = Welsh adaptation of: Glass.