APA Style

Gill, G, S. et al (2001). Modern Auditing & Assurance Services, 6th Ed. (6). Milton: John Wiley & Sons Australia, Ltd..

MLA Style

Gill, Gurdarshan, S.. et al. "Modern Auditing & Assurance Services, 6th Ed.". 6 Milton: John Wiley & Sons Australia, Ltd., 2001. Text.