Fy myd
Subtitle: casgliad o sbardunau ac ymarferion yn ymwneud â'r amgylchedd
By: gan Gwilym Dyfri Jones.
Contributors: University College of Wales. Centre for Educational Studies.; Trinity College (Carmarthen, Wales)
Series: Cyfres 2000
Publisher: Y Ganolfan Astudiaethau Addysg
Published: 1997
Place of publication: Aberystwyth
Language: wel
Number of pages: 72
Subjects: Welsh language -- Study and teaching (Secondary); Ecology -- Juvenile literature.; Human beings -- Influence on nature -- Juvenile literature.; Human ecology -- Juvenile literature.