TY  - JOUR
T1  - Happiness: Time trends, seasonal variations, intersurvey differences, and other mysteries
AU  - Smith, Tom W.
PY  - 1979
SP  - 18
EP  - 30
JO  - Social Psychology Quarterly
VL  - 42
IS  - 1
SN  - 0190-2725
UR  - http://www.jstor.org/stable/3033870
ER  -