Snow, T. P. (1987). Essentials of the dynamic universe: An introduction to astronomy (2nd ed.). West Pub. Co..
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Chicago-čujuhus (17. p.)
Snow, Theodore P. Essentials of the Dynamic Universe: An Introduction to Astronomy. 2nd ed. St. Paul: West Pub. Co., 1987.
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MLA-čujuhus (9. p.)
Snow, Theodore P. Essentials of the Dynamic Universe: An Introduction to Astronomy. 2nd ed. West Pub. Co., 1987.
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