Columbia subject headings:
Midwifery--Great Britain--History--18th century--Sources.
Midwives--Great Britain--History--18th century--Sources.
Obstetrics--Great Britain--History--18th century--Sources.
Harvard subject headings:
Midwifery--Great Britain--History--18th century--Sources.
Midwives--Great Britain--History--18th century--Sources.
Obstetrics--Great Britain--History--18th century--Sources.
Princeton subject headings:
Midwifery--Great Britain--History--18th century--Sources.
Midwives--Great Britain--History--18th century--Sources.
Obstetrics--Great Britain--History--18th century--Sources.