Columbia subject headings:
Joint custody of children--Canada.
Joint custody of children--United States.
Parent and child (Law)--Canada.
Parent and child (Law)--United States.
Harvard subject headings:
Joint custody of children--Canada.
Joint custody of children--United States.
Parent and child (Law)--Canada.
Parent and child (Law)--United States
Princeton subject headings:
Joint custody of children--Canada.
Joint custody of children--United States.
Parent and child (Law)--Canada.
Parent and child (Law)--United States.