Dyfyniad APA
Rocha, R. R., Vittas, D., & Rudolph, H. P. (2011). Annuities and other retirement products: Designing the payout phase. World Bank.
Dyfyniad Arddull Chicago
Rocha, Roberto Rezende, Dimitri Vittas, and Heinz P. Rudolph. Annuities and Other Retirement Products: Designing the Payout Phase. Washington, D.C.: World Bank, 2011.
Dyfyniad MLA
Rocha, Roberto Rezende, et al. Annuities and Other Retirement Products: Designing the Payout Phase. World Bank, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.