Παραπομπή σε μορφή APA (7η εκδ.)

Nickels, W. G., McHugh, J. M., & McHugh, S. M. (2002). Understanding Business (6th ed.). McGraw-Hill/Irwin.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nickels, William G., James M. McHugh, και Susan M. McHugh. Understanding Business. 6th ed. Boston: McGraw-Hill/Irwin, 2002.

Παραπομπή σε μορφή MLA (8th εκδ.)

Nickels, William G., et al. Understanding Business. 6th ed. McGraw-Hill/Irwin, 2002.