Columbia subject headings:
Harvard subject headings:
Labor supply--Australia--Victoria--History--19th century.
Prisoners--Australia--Victoria--History--19th century.
Social classes--Australia--Victoria--History--19th century.
Social structure--Australia--Victoria--History--19th century.
Princeton subject headings:
Labor supply--Australia--Victoria--History--19th century.
Prisoners--Australia--Victoria--History--19th century.
Social classes--Australia--Victoria--History--19th century.
Social structure--Australia--Victoria--History--19th century.