TY  - BOOK
AU  - Csikszentmihalyi,Mihaly
TI  - Flow: the psychology of optimal experience 
SN  - 0060162538 :
AV  - BF575.H27 .C85 1990
PY  - 1990///
CY  - New York
PB  - Harper & Row
KW  - Happiness
KW  - Attention
N1  - BIB
ER  -