Columbia subject headings:
Sex instruction--Europe--Case studies.
Sex instruction--Government policy--Europe--Case studies.
Sex instruction--Government policy--Great Britain.
Sex instruction--Great Britain.
Harvard subject headings:
Sex instruction--Europe--Case studies.
Sex instruction--Government policy--Europe--Case studies.
Sex instruction--Government policy--Great Britain.
Sex instruction--Great Britain.
Princeton subject headings:
Sex instruction--Europe--Case studies.
Sex instruction--Government policy--Europe--Case studies.
Sex instruction--Government policy--Great Britain.
Sex instruction--Great Britain.