National Geographic Society. Cartographic Division, Payne, M. M., Grosvenor, M. B., Grosvenor, G. M., Peele, W. T., & Cook, D. W. (1976). Soviet Union [cartographic material]. The Society.
Citace podle Chicago (17th ed.)National Geographic Society. Cartographic Division, Melvin M. Payne, Melville Bell Grosvenor, Gilbert M. Grosvenor, William T. Peele, a David W. Cook. Soviet Union [cartographic Material]. Washington, D.C: The Society, 1976.
Citace podle MLA (9th ed.)National Geographic Society. Cartographic Division, et al. Soviet Union [cartographic Material]. The Society, 1976.
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