APA (7th ed.) Citation

Porter, B., Simon, J., & Hatherly, D. (2014). Principles of external auditing (4th ed.). John Wiley & sons.

Chicago Style (17th ed.) Citation

Porter, Brenda, Jon Simon, and David Hatherly. Principles of External Auditing. 4th ed. New York [etc.]: John Wiley & sons, 2014.

MLA (9th ed.) Citation

Porter, Brenda, et al. Principles of External Auditing. 4th ed. John Wiley & sons, 2014.