Dayal, R. (1981). An integrated system of world models: With separate models for economic growth, population and labour force, energy, food and agriculture, machinery and equipment, and raw materials. North-Holland.
Citace podle Chicago (17th ed.)Dayal, Ram. An Integrated System of World Models: With Separate Models for Economic Growth, Population and Labour Force, Energy, Food and Agriculture, Machinery and Equipment, and Raw Materials. Amsterdam: North-Holland, 1981.
Citace podle MLA (9th ed.)Dayal, Ram. An Integrated System of World Models: With Separate Models for Economic Growth, Population and Labour Force, Energy, Food and Agriculture, Machinery and Equipment, and Raw Materials. North-Holland, 1981.
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