Columbia subject headings:
Harvard subject headings:
Children--Research--Handbooks, manuals, etc.
Children--Social conditions--Handbooks, manuals, etc.
Youth--Research--Handbooks, manuals, etc.
Youth--Social conditions--Handbooks, manuals, etc.
Princeton subject headings:
Children--Research--Handbooks, manuals, etc.
Children--Social conditions--Handbooks, manuals, etc.
Youth--Research--Handbooks, manuals, etc.
Youth--Social conditions--Handbooks, manuals, etc.