APA (7th ed.) Zitazioa

Whitehouse, E. (2007). Pensions panorama: Retirement-income systems in 53 countries. World Bank.

Chicago Style (17th ed.) Zitazioa

Whitehouse, Edward. Pensions Panorama: Retirement-income Systems in 53 Countries. Washington, D.C.: World Bank, 2007.

MLA (9th ed.) Zitazioa

Whitehouse, Edward. Pensions Panorama: Retirement-income Systems in 53 Countries. World Bank, 2007.