APA (7th ed.) Citation

Cooper, A., Leggott, P., & Sprenger, C. Words in action: Simple guidance and assignments in communication.

Chicago Style (17th ed.) Citation

Cooper, Alan, Peter Leggott, and Cyril Sprenger. Words in Action: Simple Guidance and Assignments in Communication.

MLA (9th ed.) Citation

Cooper, Alan, et al. Words in Action: Simple Guidance and Assignments in Communication.