Rhifau cyntaf =
Subtitle: First Welsh numbers
By: [Jo Litchfield].
Publisher: Dref Wen
Published: 2002
Place of publication: Caerdydd
Language: wel
Number of pages: 10
Subjects: Arithmetic -- Study and teaching (Elementary); Counting -- Study and teaching (Elementary)
Other titles: First Welsh numbers.
Work titles: First numbers.
Notes: Argraffiad Saesneg gwreiddiol = Original English edition : London : Usborne Publishing, 2001.

Teitl clawr = Cover title.

Llyfr bordyn = Board book.

Teitl gwreiddiol = Original title : First numbers.