Owain a'r siapiau /
Whybrow, Ian.
Reynolds, Adrian.
Huws, Emily.
Llandysul : Gwasg Gomer,
2003.
Addasiad Cymraeg gan = Welsh adaptation by : Emily Huws.
Argraffiad Saesneg gwreiddiol = Original English edition: London : Gullane Children's Books, 2002.
Dinosaurs
Form perception