Gaya APA

Wilhelm, V, A, ., Krause, , P, , . (2008). Minding the gaps . : The World Bank.Washington, D.C..

Gaya MLA

Wilhelm, Vera, A., ., Krause, , Philipp, , . "Minding the gaps". : The World Bank.Washington, D.C., 2008. Koleksi World Bank.