APA način citiranja (7. izdanje)

WILLBORN WALTER O. (1994). GLOBAL MANAGEMENT OF QUALITY ASSURANCE SYSTEMS. MCGRAW-HILL.

Čikaški stil citiranja (17. izdanje)

WILLBORN WALTER O. GLOBAL MANAGEMENT OF QUALITY ASSURANCE SYSTEMS. NEW YORK: MCGRAW-HILL, 1994.

MLA način citiranja (9. izdanje)

WILLBORN WALTER O. GLOBAL MANAGEMENT OF QUALITY ASSURANCE SYSTEMS. MCGRAW-HILL, 1994.