Columbia subject headings:
Capitalism--Social aspects.
Social classes--Russia (Federation)--Sakha.
Social classes.
Sorokin, Pitirim Aleksandrovich, 1889-1968.
Harvard subject headings:
Capitalism--Social aspects
Social classes--Russia (Federation)--Sakha.
Social classes.
Sorokin, Pitirim Aleksandrovich, 1889-1968
Princeton subject headings:
Social classes--Russia (Federation)--Sakha.
Social classes.