Engels, F., Dutt, C. P., & Haldane, J. B. S. (1940). Dialectics of nature. International Publishers.
Chicago Style aipamenaEngels, Friedrich, C. P. Dutt, and J. B. S. Haldane. Dialectics of Nature. New York: International Publishers, 1940.
MLA aipamenaEngels, Friedrich, et al. Dialectics of Nature. International Publishers, 1940.
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