Cita APA (7a ed.)

Campbell, J. Y., & Shiller, R. J. (2001). Valuation ratios and the long-run stock market outlook: An update. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Campbell, John Y., y Robert J. Shiller. Valuation Ratios and the Long-run Stock Market Outlook: An Update. Cambridge, MA: National Bureau of Economic Research, 2001.

Cita MLA (9a ed.)

Campbell, John Y., y Robert J. Shiller. Valuation Ratios and the Long-run Stock Market Outlook: An Update. National Bureau of Economic Research, 2001.