Columbia subject headings:
India--Economic conditions--20th century.
India--Economic conditions.
Harvard subject headings:
India--Economic conditions--19th century--Textbooks.
India--Economic conditions--19th century.
India--Economic conditions--20th century--Textbooks.
India--Economic conditions--20th century.
Princeton subject headings:
India--Economic conditions--19th century.
India--Economic conditions--20th century.