Παραπομπή APA

Arthur, J. (2004). The Six sigma instructor guide (2nd ed.). Macmillan.

Παραπομπή Chicago Style

Arthur, Jay. The Six Sigma Instructor Guide. 2nd ed. Delhi: Macmillan, 2004.

Παραπομπή MLA

Arthur, Jay. The Six Sigma Instructor Guide. 2nd ed. Macmillan, 2004.