APA (7th ed.) Citation

Krupp, E. C. (1994). Echoes of the ancient skies: The astronomy of lost civilizations (1. Oxford Univ. Press paperback.). Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Krupp, Edwin C. Echoes of the Ancient Skies: The Astronomy of Lost Civilizations. 1. Oxford Univ. Press paperback. New York u.a: Oxford Univ. Press, 1994.

MLA (9th ed.) Citation

Krupp, Edwin C. Echoes of the Ancient Skies: The Astronomy of Lost Civilizations. 1. Oxford Univ. Press paperback. Oxford Univ. Press, 1994.