APA

(1993). The World Bank research program 1992. Washington, D.C: World Bank.

Chicago

1993. The World Bank research program 1992. Washington, D.C: World Bank.

Harvard

(1993). The World Bank research program 1992. Washington, D.C: World Bank.

MLA

The World Bank research program 1992. Washington, D.C: World Bank. 1993.