Llyfr y gwyddonydd ifanc am sêr a phlanedau
By: (ysgrifennwyd gan Christopher Maynard) ; (cyfieithwyd gan Margaret Dafydd) ; (golygydd y testun a'r dylunio David Jefferis) ; (dyluniwyd gan Michael Roffe,Malcolm English a John Hutchinson).
Contributors: Jefferis, David.; Roffe, Michael.; English, Malcolm.; Hutchinson, John, 19---
Publisher: Elfen
Published: 1982
Place of publication: (Caernarfon) ((Nantmor, Caernarfon, Gwynedd))
Language: wel
Number of pages: 32
Subjects: Astronomy -- Juvenile literature.
Work titles: The young scientist book of stars & planets.
Notes: Includes index.

Text on inside cover.

Translation of, The young scientist book of stars & planets.