TY  - BOOK
AU  - Veenhoven,Ruut
TI  - Conditions of happiness
SN  - 9027717923 :
U1  - 171.4 
PY  - 1984///
CY  - Dordrecht
PB  - D. Reidel Pub.
KW  - Happiness
N1  - Includes bibliographical references and index
ER  -