APA
DeGiorgi G., Woolston William Gui, Pellizzari Michele & National Bureau Of Economic Research. (2010). Class Size and Class Heterogeneity. Cambridge: NBER.
Chicago
DeGiorgi Giacomo, Woolston William Gui, Pellizzari Michele and National Bureau Of Economic Research. 2010. Class Size and Class Heterogeneity. Cambridge: NBER.
Harvard
DeGiorgi G., Woolston William Gui, Pellizzari Michele and National Bureau Of Economic Research. (2010). Class Size and Class Heterogeneity. Cambridge: NBER.
MLA
DeGiorgi Giacomo, Woolston William Gui, Pellizzari Michele and National Bureau Of Economic Research. Class Size and Class Heterogeneity. Cambridge: NBER. 2010.
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