Columbia subject headings:
Child health services--Cuba.
Child welfare--Cuba.
Education, Cooperative--Cuba.
Juvenile delinquents--Rehabilitation--Cuba.
Harvard subject headings:
Child health services--Cuba.
Child welfare--Cuba.
Education, Cooperative--Cuba.
Juvenile delinquents--Rehabilitation--Cuba.
Princeton subject headings:
Child health services--Cuba.
Child welfare--Cuba.
Education, Cooperative--Cuba.
Juvenile delinquents--Rehabilitation--Cuba.