Columbia subject headings:
Harvard subject headings:
Human trafficking--Czech Republic--Prevention.
Human trafficking--Germany--Prevention.
Human trafficking--Poland--Prevention.
Prostitutes--Legal status, laws, etc.
Prostitution--Government policy--Czech Republic.
Prostitution--Government policy--Germany.
Prostitution--Government policy--Poland.
Princeton subject headings:
Human trafficking--Czech Republic--Prevention.
Human trafficking--Germany--Prevention.
Human trafficking--Poland--Prevention.
Prostitutes--Legal status, laws, etc.
Prostitution--Government policy--Czech Republic.
Prostitution--Government policy--Germany.
Prostitution--Government policy--Poland.