Cita APA (7th ed.)

(1991). PRE working papers catalog of numbers 401 to 601. World Bank.

Cita Chicago (17th ed.)

PRE Working Papers Catalog of Numbers 401 to 601. Washington, D.C: World Bank, 1991.

Cita MLA (9th ed.)

PRE Working Papers Catalog of Numbers 401 to 601. World Bank, 1991.