Deloitte Touche Tohmatsu International. (1997). Luxembourg (1997 ed.). Deloitte Touche Tohmatsu International.
Cita Chicago (17th ed.)Deloitte Touche Tohmatsu International. Luxembourg. 1997 ed. New York: Deloitte Touche Tohmatsu International, 1997.
Cita MLA (8th ed.)Deloitte Touche Tohmatsu International. Luxembourg. 1997 ed. Deloitte Touche Tohmatsu International, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.