Gaya APA

Easterly, W., Cohen, J, [. (2009). What Works in Development ? Thinking Big and Thinking Small (Cet.1). USA: Brookings Institutions Press.

Gaya MLA

Easterly, William., Cohen, Jessica, [Ed]. "What Works in Development ? Thinking Big and Thinking Small". Cet.1 USA: Brookings Institutions Press, 2009. Text.