Barro, R.J. und Ursúa, J.F. (2008) Macroeconomic Crises since 1870 [cd], NBER working paper series. Cambridge, Mass.: National Bureau of Economic Research. doi:10.3386/w13940.
Chicago Manual of Style 17th edition (full note)Barro, Robert J., und José F. Ursúa. Macroeconomic Crises since 1870. Cd. NBER working paper series. Cambridge, Mass.: National Bureau of Economic Research, [2008?], Cambridge, Mass.: National Bureau of Economic Research, [2008?]. https://doi.org/10.3386/w13940.
American Psychological Association 7th editionBarro, R. J., & Ursúa, J. F. (ca. 2008). Macroeconomic Crises since 1870 [Cd]. In NBER working paper series. National Bureau of Economic Research. https://doi.org/10.3386/w13940
Modern Language Association 9th editionBarro, R. J., und J. F. Ursúa. „Macroeconomic Crises since 1870“. NBER working paper series, cd, National Bureau of Economic Research, 2008, https://doi.org/10.3386/w13940.
ISO-690 (author-date, Deutsch)BARRO, Robert J. und José F. URSÚA, 2008. Macroeconomic Crises since 1870. Cambridge, Mass.: National Bureau of Economic Research