Columbia subject headings:
Breastfeeding--Finland--History--19th century.
Breastfeeding--Sweden--History--19th century.
Fertility, Human--Finland--History--19th century.
Fertility, Human--Sweden--History--19th century.
Infants--Mortality--Finland--History--19th century.
Infants--Mortality--Sweden--History--19th century.
Harvard subject headings:
Breastfeeding--Finland--History--19th century.
Breastfeeding--Sweden--History--19th century.
Fertility, Human--Finland--History--19th century.
Fertility, Human--Sweden--History--19th century.
Infants--Finland--Mortality--History--19th century.
Infants--Mortality--Finland--History--19th century.
Infants--Mortality--Sweden--History--19th century.
Infants--Sweden--Mortality--History--19th century.
Princeton subject headings:
Breastfeeding--Finland--History--19th century.
Breastfeeding--Sweden--History--19th century.
Fertility, Human--Finland--History--19th century.
Fertility, Human--Sweden--History--19th century.
Infants--Finland--Mortality--History--19th century.
Infants--Sweden--Mortality--History--19th century.