APA (7th ed.) Citation

Thorpe, S., & Clifford, J. (2000). Dear trainer: Dealing with difficult problems in training. Kogan Page.

Chicago Style (17th ed.) Citation

Thorpe, Sara, and Jackie Clifford. Dear Trainer: Dealing with Difficult Problems in Training. London: Kogan Page, 2000.

MLA (9th ed.) Citation

Thorpe, Sara, and Jackie Clifford. Dear Trainer: Dealing with Difficult Problems in Training. Kogan Page, 2000.