APA (7th ed.) Citation

Godefoy. (1993). Confident Speaking: How to communicate effectively using the powertalk system. Piatkus books.

Chicago Style (17th ed.) Citation

Godefoy. Confident Speaking: How to Communicate Effectively Using the Powertalk System. London: Piatkus books, 1993.

MLA (8th ed.) Citation

Godefoy. Confident Speaking: How to Communicate Effectively Using the Powertalk System. Piatkus books, 1993.

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