Columbia subject headings:
Harvard subject headings:
Gambling--Government policy--Canada.
Gambling--Moral and ethical aspects--Canada--History--20th century.
Gambling--Social aspects--Canada--History--20th century.
Princeton subject headings:
Gambling--Government policy--Canada.
Gambling--Moral and ethical aspects--Canada--History--20th century.
Gambling--Social aspects--Canada--History--20th century.