Lodders, K., & Fegley, B. (1998). The planetary scientist's companion. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Lodders, Katharina, agus Bruce Fegley. The Planetary Scientist's Companion. New York: Oxford University Press, 1998.
Lua MLA (9ú heag.)Lodders, Katharina, agus Bruce Fegley. The Planetary Scientist's Companion. Oxford University Press, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.