Columbia subject headings:
Harvard subject headings:
Classroom management--Social aspects--Congresses.
Cooperativeness--Congresses.
Group work in education--Congresses.
Minorities--Education--Congresses.
Princeton subject headings:
Classroom management--Social aspects--Congresses.
Cooperativeness--Congresses.
Group work in education--Congresses.
Minorities--Education--Congresses.