(2004). Blue trail. [s.n.].
Chicago Style aipamenaBlue Trail. [Singapore: [s.n.], 2004.
MLA aipamenaBlue Trail. [s.n.], 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2004). Blue trail. [s.n.].
Chicago Style aipamenaBlue Trail. [Singapore: [s.n.], 2004.
MLA aipamenaBlue Trail. [s.n.], 2004.