Gaya APA

Johnstone, K, M. et al (2014). Auditing : a risk-based approach to conducting a quality audit (9th ed.). United States of America: Cengage Learning.

Gaya MLA

Johnstone, Karla, M.. et al. "Auditing : a risk-based approach to conducting a quality audit". 9th ed. United States of America: Cengage Learning, 2014. Text.