"Csikszentmihalyi, Mihaly" <br/><br/>
Flow : psychology of optimal experience 

 - 0 
 - New York  HarperCollins  c1990 
 - "xii,303p. : ill. ;20cm." 
<br/><br/> includes bibliographical references 
<br/><br/><label>ISBN: </label>9780060920432 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Attention<br/>Happiness