Dysgu difyr
Subtitle: llyfr amgylchedd i ysgolion a chartrefi
By: gan T. Llew Jones.
Series: Cyfres astudio amgylchfyd -- llyfr 1
Publisher: Gwasg Gomer
Published: 1977
Place of publication: Llandysul
Language: wel
Number of pages: 47
Subjects: Human ecology -- Juvenile literature.