National Bureau of Economic Research. NBER working paper series. National Bureau of Economic Research,.
Cita Chicago (17th ed.)National Bureau of Economic Research. NBER Working Paper Series. [Stanford, CA]: National Bureau of Economic Research,.
Cita MLA (8th ed.)National Bureau of Economic Research. NBER Working Paper Series. National Bureau of Economic Research,.
Atenció: Aquestes cites poden no estar 100% correctes.