Columbia subject headings:
Harvard subject headings:
Household appliances, Electric--History--19th century.
Household appliances, Electric--History--20th century.
Household appliances--History--19th century.
Household appliances--History--20th century.
Housewives--History--19th century.
Housewives--History--20th century.
Princeton subject headings:
Household appliances, Electric--History--19th century.
Household appliances, Electric--History--20th century.
Household appliances--History--19th century.
Household appliances--History--20th century.
Housewives--History--19th century.
Housewives--History--20th century.