APA (7th ed.) Citation

Peter, L. J., & Hull. (2009). The Peter principle: Why things always go wrong. Collins Business.

Chicago Style (17th ed.) Citation

Peter, Laurence J., and Hull. The Peter Principle: Why Things Always Go Wrong. New York: Collins Business, 2009.

MLA (8th ed.) Citation

Peter, Laurence J., and Hull. The Peter Principle: Why Things Always Go Wrong. Collins Business, 2009.

Warning: These citations may not always be 100% accurate.