Columbia subject headings:
Harvard subject headings:
Church schools--Law and legislation--Germany.
Kindergarten--Law and legislation--Germany.
Princeton subject headings:
Christian education of preschool children.
Education, Preschool--Law and legislation--Germany--North Rhine-Westphalia.
Kindergarten--Law and legislation--Germany--North Rhine-Westphalia.
Nursery schools--Law and legislation--Germany--North Rhine-Westphalia.