Columbia subject headings:
Central planning--Hungary--Mathematical models.
Economic policy--Mathematical models.
Hungary--Economic policy--1968-1989--Mathematical models.
Harvard subject headings:
Central planning--Hungary--Mathematical models.
Economic policy--Mathematical models
Hungary--Economic policy--1968-1989--Mathematical models.
Princeton subject headings:
Central planning--Hungary--Mathematical models.
Economic policy--Mathematical models.
Hungary--Economic policy--1968---Mathematical models.