Columbia subject headings:
Social change--Europe, Eastern--Congresses.
Social problems--Europe, Eastern--Congresses.
Social security--Europe, Eastern--Congresses.
Social structure--Europe, Eastern--Congresses.
Harvard subject headings:
Europe, Eastern--Social policy.
Social change--Europe, Eastern
Social change--Europe, Eastern--Congresses
Social problems--Europe, Eastern--Congresses.
Social security--Europe, Eastern--Congresses.
Social structure--Europe, Eastern--Congresses.
Princeton subject headings:
Social change--Europe, Eastern--Congresses.
Social problems--Europe, Eastern--Congresses.
Social security--Europe, Eastern--Congresses.
Social structure--Europe, Eastern--Congresses.