Columbia subject headings:
Lifestyles--Czech Republic--History--21st century.
Lifestyles--Germany--History--21st century.
Lifestyles--Poland--History--21st century.
Partnership--Czech Republic--History--21st century.
Partnership--Germany--History--21st century.
Partnership--Poland--History--21st century.
Harvard subject headings:
Lifestyles--Czech Republic--History--21st century.
Lifestyles--Germany--History--21st century.
Lifestyles--Poland--History--21st century.
Partnership--Czech Republic--History--21st century.
Partnership--Germany--History--21st century.
Partnership--Poland--History--21st century.
Princeton subject headings:
Lifestyles--Czech Republic--History--21st century.
Lifestyles--Germany--History--21st century.
Lifestyles--Poland--History--21st century.
Partnership--Czech Republic--History--21st century.
Partnership--Germany--History--21st century.
Partnership--Poland--History--21st century.