Schorn, R. A. (1998). Planetary astronomy: From ancient times to the third millennium. Texas A & M University Press.
Citace podle Chicago (17th ed.)Schorn, Ronald A. Planetary Astronomy: From Ancient Times to the Third Millennium. College Station, Tex.: Texas A & M University Press, 1998.
Citace podle MLA (9th ed.)Schorn, Ronald A. Planetary Astronomy: From Ancient Times to the Third Millennium. Texas A & M University Press, 1998.
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