World Trade Press & ebrary, Inc. (2010). Tunisia: Communications. World Trade Press.
Chicago Style (17th ed.) ZitazioaWorld Trade Press eta Inc ebrary. Tunisia: Communications. Petaluma, CA: World Trade Press, 2010.
MLA (9th ed.) ZitazioaWorld Trade Press eta Inc ebrary. Tunisia: Communications. World Trade Press, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.