Gruber, J., & Orszag, P. (2000). Does the social secruity earnings test affect labor supply and benefits receiptn. National Bureau of Economic Research.
Citazione stile Chigago Style (17a edizione)Gruber, Jonathan, e Peter Orszag. Does the Social Secruity Earnings Test Affect Labor Supply and Benefits Receiptn. Cambridge: National Bureau of Economic Research, 2000.
Citatione MLA (9a ed.)Gruber, Jonathan, e Peter Orszag. Does the Social Secruity Earnings Test Affect Labor Supply and Benefits Receiptn. National Bureau of Economic Research, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.