McGrath, Ruth, Pepper, Ian and Thornton, Mark (2025) Communication Skills, Decision-Making and Managing Conflict. Chapter 6. In: Introduction to Professional Policing: Examining the Evidence Base - 2nd edition. Routledge, London. ISBN 9781003492948

Pepper, Ian and McGrath, Ruth (2025) Introduction to Professional Policing: Examining the Evidence Base. Second Edition. Routledge, London. ISBN 9781003492948

Pepper, Ian and McGrath, Ruth (2020) Introduction to Professional Policing: Examining the Evidence Base. Routledge, London. ISBN 9781003492948