Columbia subject headings:
Harvard subject headings:
Sociolinguistics--Wales.
Wales--Census, 1891.
Wales--Languages--Statistics.
Wales--Social conditions--Statistics.
Wales--Social life and customs--Statistics.
Welsh language--19th century.
Welsh language--Social aspects--Wales--History--19th century.
Welsh language--Social aspects--Wales.
Welsh language--Statistics.
Welsh--Census, 1891.
Princeton subject headings:
Sociolinguistics--Wales.
Welsh language--History--19th century.