Mathemateg HBJ
Subtitle: llyfr gweithgareddau Blwyddyn 4 :Trionglau/Pellach a phellach.
Publisher: Harcourt Brace Jovanovich
Published: 1994
Place of publication: London
Language: wel
Number of pages: 32
Work titles: HBJ Mathematics Activity Book Year 4:Triangles. Welsh.