Dyfeisiadau a newidiodd y byd
By: lluniau gan Vicente Segrelles ; testun gwreiddiol gan Antonio Cunillera ; addaswyd (o'r Ysbaeneg) gan Gwen Jones.
Contributors: Cunillera, Antonio.; Jones, Gwen.
Publisher: Gwasg y Dref Wen
Published: 1976
Place of publication: Caerdydd
Language: wel
Number of pages: 63
Subjects: Inventions -- History -- Juvenile literature.
Work titles: Inventos que conmovieron al mundo.
Notes: Translation of, 'Inventos que conmovieron al mundo'. Barcelona , AFHA Internacional, 197-?.