APA (7th ed.) Citation

Campion, J., Bongers, S., Pye, T., & Pye, K. An Exercise in Discipline - Peel.

Chicago Style (17th ed.) Citation

Campion, Jane, Sally Bongers, Tim Pye, and Katie Pye. An Exercise in Discipline - Peel.

MLA (9th ed.) Citation

Campion, Jane, et al. An Exercise in Discipline - Peel.