Columbia subject headings:
Harvard subject headings:
Old age assistance--Portugal.
Old age pensions--Portugal.
Older people--Portugal--Psychology.
Portugal--Economic policy--21st century.
Portugal--Social policy--21st century.
Princeton subject headings:
Old age assistance--Portugal.
Old age pensions--Portugal.
Older people--Portugal--Psychology.
Portugal--Economic policy--21st century.
Portugal--Social policy--21st century.