APA (7th ed.) Citation

Hefferon, K., & Boniwell, I. (2011). Positive psychology: Theory, research and applications. Open University Press/McGraw-Hill.

Chicago Style (17th ed.) Citation

Hefferon, Kate, and Ilona Boniwell. Positive Psychology: Theory, Research and Applications. Maidenhead, Berkshire ; New York: Open University Press/McGraw-Hill, 2011.

MLA (9th ed.) Citation

Hefferon, Kate, and Ilona Boniwell. Positive Psychology: Theory, Research and Applications. Open University Press/McGraw-Hill, 2011.