Columbia subject headings:
Harvard subject headings:
Child care services--Canada
Child care services--United States
Child care--Canada.
Child care--United States
Children of working parents.
Day care centers--Canada.
Day care centers--United States
Married people--Employment.
Work and family.
Princeton subject headings:
Child care services--Canada.
Child care services--United States.
Child care--Canada.
Child care--United States.