APA
Poterba J. M., Verdugo Arturo Ramirez & National Bureau Of Economic Research. (2008). Portfolio Substitution and the Revenue Cost of Exempting Sta. Cambridge: NBER.
Chicago
Poterba James M, Verdugo Arturo Ramirez and National Bureau Of Economic Research. 2008. Portfolio Substitution and the Revenue Cost of Exempting Sta. Cambridge: NBER.
Harvard
Poterba J. M., Verdugo Arturo Ramirez and National Bureau Of Economic Research. (2008). Portfolio Substitution and the Revenue Cost of Exempting Sta. Cambridge: NBER.
MLA
Poterba James M, Verdugo Arturo Ramirez and National Bureau Of Economic Research. Portfolio Substitution and the Revenue Cost of Exempting Sta. Cambridge: NBER. 2008.
