TY  - BOOK
AU  - Hefferon,Kate
AU  - Boniwell,Ilona
TI  - Positive psychology: theory, research and applications 
SN  - 9780335241941
PY  - 2011///
CY  - Maidenhead, Berkshire, Eng.
PB  - McGraw Hill Open University Press
KW  - Positive psychology
N1  - Includes bibliographical references (p. 229-259) and index
ER  -