APA način citiranja (7. izdanje)

Clarke, D., & Macfarlane, M. (1999). Focus on Business: David Clarke und Michael Macfarlane (New edition.). Cornelsen & Oxford.

Čikaški stil citiranja (17. izdanje)

Clarke, David, i Michael Macfarlane. Focus on Business: David Clarke Und Michael Macfarlane. New edition. Berlin: Cornelsen & Oxford, 1999.

MLA način citiranja (8. izdanje)

Clarke, David, i Michael Macfarlane. Focus on Business: David Clarke Und Michael Macfarlane. New edition. Cornelsen & Oxford, 1999.