Afonydd
By: Andy Owen a Miranda Ashwell ; [addasiad Cymraeg gan Rhodri Harries].
Contributors: Ashwell, Miranda.
Series: Beth yw -?; Llyfrau Llyfrgell mawr Heinemann
Publisher: Heinemann Library
Published: 1999
Place of publication: Rhydychen
Language: wel
Number of pages: 32
Subjects: Rivers -- Juvenile literature.
Genres: Juvenile literature.
Work titles: Rivers.
Notes: Argraffiad Saesneg gwreiddiol = Original English edition : Oxford : Heinemann Library, 1998.

Addasiad Cymraeg gan = Welsh adaptation by : Rhodri Harries.

Yn cynnwys mynegai = Includes index.

Addasiad Cymraeg o = Welsh adaptation of : Rivers.

Yn cynnwys geirfa fer yng nghefn y llyfr = Includes a short vocabulary at end of book.