Columbia subject headings:
Harvard subject headings:
Adolescent psychology--Congresses
Anxiety in youth--Congresses.
Youth--Social conditions--20th century--Congresses.
Princeton subject headings:
Adolescent psychology--Congresses.
Children--Social conditions--Congresses.
Education--Aims and objectives--Congresses.
Environmental education--Congresses.
Young consumers--Education--Congresses.
Youth--Political activity--Congresses.
Youth--Social conditions--Congresses.