Columbia subject headings:
Adoptees--Canada--Identification.
Adoption--Canada.
Adoption--Law and legislation--Canada.
Social surveys--Canada.
Harvard subject headings:
Adoptees--Canada--Attitudes.
Adoptees--Canada--Identification.
Adoption--Canada.
Adoption--Law and legislation--Canada.
Birthparents--Canada--Attitudes.
Birthparents--Canada--Identification.
Parents--Canada--Attitudes.
Social surveys--Canada.
Princeton subject headings:
Adoptees--Canada--Identification.
Adoption--Canada.
Adoption--Law and legislation--Canada.
Social surveys--Canada.