Tohutoro APA (7th ed.)
Krupp, E. Echoes of the Ancient Skies: The Astronomy of lost civilizations. Harper and Row.
Tohutoru Kātū Chicago (17th ed.)
Krupp, E.C. Echoes of the Ancient Skies: The Astronomy of Lost Civilizations. Nueva York, EUA: Harper and Row.
Tohutoro MLA (9th ed.)
Krupp, E.C. Echoes of the Ancient Skies: The Astronomy of Lost Civilizations. Harper and Row.
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