Hershenow Nicholas. (2001). The road builder. BlueHen Books.
Chicago Style (17th ed.) ZitazioaHershenow Nicholas. The Road Builder. New York: BlueHen Books, 2001.
MLA (9th ed.) ZitazioaHershenow Nicholas. The Road Builder. BlueHen Books, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.