Koupelis,Theo. (2011). In quest of the Universe (6th.). Jones and Bartlett.
Chicago Style aipamenaKoupelis,Theo. In Quest of the Universe. 6th. Boston: Jones and Bartlett, 2011.
MLA aipamenaKoupelis,Theo. In Quest of the Universe. 6th. Jones and Bartlett, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.