APA (7th ed.) Citation

Hadfield, S., & Hasson, G. (2010). How to be assertive in any situation. Prentice Hall Life.

Chicago Style (17th ed.) Citation

Hadfield, Sue, and Gill Hasson. How to Be Assertive in Any Situation. Harlow, England: Prentice Hall Life, 2010.

MLA (9th ed.) Citation

Hadfield, Sue, and Gill Hasson. How to Be Assertive in Any Situation. Prentice Hall Life, 2010.