APA
Clemens M. A., Demombynes Gabriel & World Bank. (2010). When does rigorous impact evaluation make a difference?: The. Washington DC: World Bank.
Chicago
Clemens Michael A, Demombynes Gabriel and World Bank. 2010. When does rigorous impact evaluation make a difference?: The. Washington DC: World Bank.
Harvard
Clemens M. A., Demombynes Gabriel and World Bank. (2010). When does rigorous impact evaluation make a difference?: The. Washington DC: World Bank.
MLA
Clemens Michael A, Demombynes Gabriel and World Bank. When does rigorous impact evaluation make a difference?: The. Washington DC: World Bank. 2010.
