@techreport{NBERw13994,
 title = "The Non-Cognitive Returns to Class Size",
 author = "Thomas Dee and Martin West",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13994",
 year = "2008",
 month = "May",
 URL = "http://www.nber.org/papers/w13994",
}