Verspoor, A. (1991). Lending for learning: Twenty years of World Bank support for basic education. Population and Human Resources Department, World Bank.
Citazione stile Chigago Style (17a edizione)Verspoor, Adriaan. Lending for Learning: Twenty Years of World Bank Support for Basic Education. Washington, D.C: Population and Human Resources Department, World Bank, 1991.
Citatione MLA (9a ed.)Verspoor, Adriaan. Lending for Learning: Twenty Years of World Bank Support for Basic Education. Population and Human Resources Department, World Bank, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.