Columbia subject headings:
Ethnology--Methodology.
Ethnology--Soviet Union.
Sociology--Methodology.
Sociology--Soviet Union.
Harvard subject headings:
Ethnology--Soviet Union
Social surveys--Soviet Union.
Soviet Union--Social conditions--1970-1991.
Princeton subject headings:
Ethnology--Methodology.
Ethnology--Soviet Union.
Sociology--Methodology.
Sociology--Soviet Union.