Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Krupp, E. C. (1983). Echoes of the ancient skies: The astronomy of lost civilizations. Harper & Row.

Chicago Citation Edition Citation

Krupp, E. C. Echoes of the Ancient Skies: The Astronomy of Lost Civilizations. New York: Harper & Row, 1983.

MLA Citation Edition Citation

Krupp, E. C. Echoes of the Ancient Skies: The Astronomy of Lost Civilizations. Harper & Row, 1983.