Lua APA (7ú heag.)
Ehlers, J., Hughes, P. D., & Gibbard, P. L. (2016). The Ice Age. Wiley-Blackwell.
Lua i Stíl Chicago (17ú heag.)
Ehlers, Jürgen, Philip D. Hughes, agus Philip L. Gibbard. The Ice Age. Chichester, England: Wiley-Blackwell, 2016.
Lua MLA (9ú heag.)
Ehlers, Jürgen, et al. The Ice Age. Wiley-Blackwell, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.