Gaya APA
Gertler, Paul J. (2011).
Impact Evaluation in Practice .
Washington:
The World Bank.
Gaya Chicago
Gertler, Paul J.
Impact Evaluation in Practice.
Washington:
The World Bank,
2011.
Text.
Gaya MLA
Gertler, Paul J.
Impact Evaluation in Practice.
Washington:
The World Bank,
2011.
Text.
Gaya Turabian
Gertler, Paul J.
Impact Evaluation in Practice.
Washington:
The World Bank,
2011.
Print.