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GOST
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Levchenko N., Yershov National Economic Structural Proportionality and Its Macroeconomic Analysis // Economics and the Mathematical Methods. – 1981. – V. 17. – Issue 4 C. 667-680 . |
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MLA
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Levchenko, N.G, Yershov, E. "National Economic Structural Proportionality and Its Macroeconomic Analysis." Economics and the Mathematical Methods. 17.4 (1981).:667-680. |
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APA
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Levchenko N., Yershov (1981). National Economic Structural Proportionality and Its Macroeconomic Analysis. Economics and the Mathematical Methods. vol. 17, no. 4, pp.667-680 |
