Columbia subject headings:
Soviet Union--Economic conditions--1975-1985--Regional disparities.
Soviet Union--Economic conditions--1975-1985.
Harvard subject headings:
Soviet Union--Economic conditions--1975-1985--Regional disparities.
Soviet Union--Economic conditions--1975-1985.
Soviet Union--Economic conditions--1985-1991.
Princeton subject headings:
Soviet Union--Economic conditions--1976---Regional disparities.
Soviet Union--Economic conditions--1976-.