Walker, C. B. (1987). Halley's Comet in Cuneiform. The First Recorded Observation in Babylonia.
Chicago-Zitierstil (17. Ausg.)Walker, Christopher B.F. Halley's Comet in Cuneiform. The First Recorded Observation in Babylonia. 1987.
MLA-Zitierstil (8. Ausg.)Walker, Christopher B.F. Halley's Comet in Cuneiform. The First Recorded Observation in Babylonia. 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.