Columbia subject headings:
Feminism--Canada--Congresses.
Pornography--Social aspects--Canada--Congresses.
Prostitution--Canada--Congresses.
Harvard subject headings:
Feminism--Canada--Congresses.
Pornography--Social aspects--Canada--Congresses.
Prostitution--Canada--Congresses.
Princeton subject headings:
Feminism--Canada--Congresses.
Pornography--Social aspects--Canada--Congresses.
Prostitution--Canada--Congresses.