Columbia subject headings:
Child welfare--Canada.
Child welfare--Denmark.
Child welfare--New Zealand.
Child welfare--United States.
Harvard subject headings:
Child welfare--Canada
Child welfare--Denmark
Child welfare--New Zealand.
Child welfare--United States
Children--Legal status, laws, etc.--Canada
Children--Legal status, laws, etc.--Denmark
Children--Legal status, laws, etc.--New Zealand.
Children--Legal status, laws, etc.--United States
Mothers' pensions--Canada.
Mothers' pensions--Denmark.
Mothers' pensions--Law and legislation--United States--States.
Mothers' pensions--New Zealand.
Mothers' pensions--United States.
Mothers' pensions.
Princeton subject headings: