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

APA Citation Edition Citation

Barkai, R., Halfon, E., & Levy, E. They were here before us: Stories from the first million years.

Chicago Citation Edition Citation

Barkai, Ran, Eyal Halfon, und Eylon Levy. They Were Here Before Us: Stories from the First Million Years.

MLA Citation Edition Citation

Barkai, Ran, et al. They Were Here Before Us: Stories from the First Million Years.