Columbia subject headings:
Child prostitution--Europe.
Child prostitution--United States.
Forced labor--Europe.
Forced labor--United States.
Prostitution--Europe.
Prostitution--United States.
Harvard subject headings:
Child prostitution--Europe.
Child prostitution--United States.
Forced labor--Europe.
Forced labor--United States.
Prostitution--Europe
Prostitution--United States
Princeton subject headings:
Child prostitution--Europe.
Child prostitution--United States.
Forced labor--Europe.
Forced labor--United States.
Prostitution--Europe.
Prostitution--United States.