Adeiladau, pontydd a thwneli
By: Jackie Gaff ; trosiad Cymraeg: Berwyn Prys Jones.
Contributors: Jones, Berwyn Prys.
Series: Beth yw'r ateb?
Publisher: Dref Wen
Published: 1993
Place of publication: Caerdydd
Language: wel
Number of pages: 40
Subjects: Buildings -- Juvenile literature.; Bridges -- Juvenile literature.; Tunnels -- Juvenile literature.
Work titles: Buildings, bridges and tunnels.
Notes: Arg. Saesneg gwreiddiol = Original English ed: Kingfisher Books, 1991.

Yn cynnwys mynegai = Includes index.