(1998). Turn left at alpha centauri : a study of space and the universe: V.10. South-Western Educational Publishing.
Čikaški stil citiranjaTurn Left At Alpha Centauri : A Study of Space and the Universe: V.10. South-Western Educational Publishing, 1998.
MLA način citiranjaTurn Left At Alpha Centauri : A Study of Space and the Universe: V.10. South-Western Educational Publishing, 1998.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.