Wilczynski, J. (1972). The economics of socialism: Principles governing the operation of the centrally planned economies in the USSR and Eastern Europe under the new system. London: Allen and Unwin.

Wilczynski, J. The Economics of Socialism: Principles Governing the Operation of the Centrally Planned Economies in the USSR and Eastern Europe Under the New System. London: Allen and Unwin, 1972.

Wilczynski, J. The Economics of Socialism: Principles Governing the Operation of the Centrally Planned Economies in the USSR and Eastern Europe Under the New System. London: Allen and Unwin, 1972.