APA
Demirguc-Kunt A., Schwarz Anita & World Bank. (1995). Costa rican pension system : Options for reform. Washigton: World Bank.
Chicago
Demirguc-Kunt Asli, Schwarz Anita and World Bank. 1995. Costa rican pension system : Options for reform. Washigton: World Bank.
Harvard
Demirguc-Kunt A., Schwarz Anita and World Bank. (1995). Costa rican pension system : Options for reform. Washigton: World Bank.
MLA
Demirguc-Kunt Asli, Schwarz Anita and World Bank. Costa rican pension system : Options for reform. Washigton: World Bank. 1995.