The Norwegian Institute of International Affairs. (1963). Economics of Planning: Theory and practice of centrally planned economies and their relations with market economies. The Norwegian Institute of International Affairs.

The Norwegian Institute of International Affairs. Economics of Planning: Theory and Practice of Centrally Planned Economies and Their Relations with Market Economies. Oslo: The Norwegian Institute of International Affairs, 1963.

The Norwegian Institute of International Affairs. Economics of Planning: Theory and Practice of Centrally Planned Economies and Their Relations with Market Economies. The Norwegian Institute of International Affairs, 1963.