TY  - BOOK
A1  - Veenhoven, R.
A1  - Ehrhardt, J.
A1  - Ho, M.S.D.
A1  - de Vries, A.
T1  - Happiness in nations: Subjective appreciation of life in 56 nations 1946–1992
Y1  - 1993
CY  - Rotterdam
PB  - Erasmus University Rotterdam

ER  -