Y lefel drothwy : ar gyfer y Gymraeg /
Jones, Glyn E.
Hughes, Medwin.
Jones, Delyth.
Council of Europe.
Council of Europe.Council for Cultural Co-operation.
Strasbourg : Gwasg Cyngor Ewrop,
1996.
Tudalen deitl = T.p.: Cyngor Er Cydweithredu Diwylliannol.
Testun Cymraeg. Cyflwyniad Cymraeg, Saesneg a Ffrangeg = Text in Welsh. Introduction in Welsh, English and French.
Llyfryddiaeth = Bibliography: p. 217-223.
Welsh language