Columbia subject headings:
Harvard subject headings:
Employee rights--Portugal--History--19th century.
Employee rights--Portugal--History--20th century.
Maternal and infant welfare--Portugal--History--19th century.
Maternal and infant welfare--Portugal--History--20th century.
Women--Employment--Portugal--History--19th century.
Women--Employment--Portugal--History--20th century.
Women--Legal status, laws, etc.--Portugal--History--19th century.
Women--Legal status, laws, etc.--Portugal--History--20th century.
Princeton subject headings:
Employee rights--Portugal--History--19th century.
Employee rights--Portugal--History--20th century.
Maternal and infant welfare--Portugal--History--19th century.
Maternal and infant welfare--Portugal--History--20th century.
Women--Employment--Portugal--History--19th century.
Women--Employment--Portugal--History--20th century.
Women--Legal status, laws, etc.--Portugal--History--19th century.
Women--Legal status, laws, etc.--Portugal--History--20th century.