APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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