Columbia subject headings:
Harvard subject headings:
Midwifery--Education--Germany--Rhineland--Catalogs.
Midwifery--Germany--Cologne--History--19th century--Exhibitions.
Midwifery--Germany--Cologne--History--20th century--Exhibitions.
Midwifery--Germany--Rhine Province--History--19th century--Exhibitions.
Midwifery--Germany--Rhine Province--History--20th century--Exhibitions.
Midwifery--Germany--Rhineland--History--Catalogs.
Midwives--Education--Germany--Cologne--History--19th century--Exhibitions.
Midwives--Education--Germany--Cologne--History--20th century--Exhibitions.
Midwives--Education--Germany--Rhine Province--History--19th century--Exhibitions.
Midwives--Education--Germany--Rhine Province--History--20th century--Exhibitions.
Midwives--Germany--Cologne--History--19th century--Exhibitions.
Midwives--Germany--Cologne--History--20th century--Exhibitions.
Midwives--Germany--Rhine Province--History--19th century--Exhibitions.
Midwives--Germany--Rhine Province--History--20th century--Exhibitions.
Universität zu Köln.
Princeton subject headings:
Midwifery--Germany--Education.
Midwifery--Germany--History.