APA
Poterba J. M., Warshawsky M. J., . (1999). The costs of annuitizing retirement payouts from individual accounts. Cambridge, Mass: National Bureau of Economic Research.
Chicago
Poterba James M, Warshawsky Mark J, . 1999. The costs of annuitizing retirement payouts from individual accounts. Cambridge, Mass: National Bureau of Economic Research.
Harvard
Poterba J. M., Warshawsky M. J., . (1999). The costs of annuitizing retirement payouts from individual accounts. Cambridge, Mass: National Bureau of Economic Research.
MLA
Poterba James M, Warshawsky Mark J, . The costs of annuitizing retirement payouts from individual accounts. Cambridge, Mass: National Bureau of Economic Research. 1999.