Dyfyniad APA
ebrary, Inc, Campbell, J. Y., & Feldstein, M. S. (2001). Risk aspects of investment-based social security reform. University of Chicago Press.
Dyfyniad Arddull Chicago
ebrary, Inc, John Y. Campbell, and Martin S. Feldstein. Risk Aspects of Investment-based Social Security Reform. Chicago: University of Chicago Press, 2001.
Dyfyniad MLA
ebrary, Inc, et al. Risk Aspects of Investment-based Social Security Reform. University of Chicago Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.