Columbia subject headings:
Fertility, Human--France--Paris.
Infertility--France--Paris.
Paris (France)--Population.
Paris (France)--Social conditions--19th century.
Harvard subject headings:
Fertility, Human--France--Paris.
Infertility--France--Paris.
Paris (France)--Population.
Paris (France)--Social conditions--19th century.
Princeton subject headings:
Fertility, Human--France--Paris.
Infertility--France--Paris.
Paris (France)--Population.
Paris (France)--Social conditions--19th century.