APA-referens (7:e uppl.)

Chen, D. H. C. (2004). Population age structure and the budget deficit. World Bank.

Chicago-referens (17:e uppl.)

Chen, Derek Hung Chiat. Population Age Structure and the Budget Deficit. Washington, D.C: World Bank, 2004.

MLA-referens (9:e uppl.)

Chen, Derek Hung Chiat. Population Age Structure and the Budget Deficit. World Bank, 2004.