Columbia subject headings:
Harvard subject headings:
Ice cream industry--Mexico--Michoacán de Ocampo--History.
Ice cream industry--Mexico--Tocumbo--History.
Ice cream industry--Social aspects--Mexico--Michoacán de Ocampo--History.
Ice cream industry--Social aspects--Mexico--Tocumbo.
Princeton subject headings:
Ice cream industry--Mexico--Michoacán de Ocampo--History.
Ice cream industry--Mexico--Tocumbo--History.
Ice cream industry--Social aspects--Mexico--Michoacán de Ocampo--History.
Ice cream industry--Social aspects--Mexico--Tocumbo.