Aer
By: gan John Paull ; darluniau gan Robert Ayton ; addasiad Cymraeg gan Marged Dafydd.
Contributors: Paull, John.; Ayton, Robert, 1915-
Series: Gwyddoniaeth yr ifanc
Publisher: Elfen
Published: 1983
Place of publication: Blaenau Ffestiniog
Language: wel
Number of pages: 51
Subjects: Air -- Juvenile literature.
Notes: Includes index.

Text, ill on lining papers.