Dyfyniad APA

Gertler, P., Martinez, S., Premand, P., Rawlings, L. B., & Vermeersch, C. M. J. (2011). Impact evaluation in practice. World Bank.

Dyfyniad Arddull Chicago

Gertler, Paul, Sebastian Martinez, Patrick Premand, Laura B. Rawlings, and Christel M. J. Vermeersch. Impact Evaluation in Practice. Washington, D.C: World Bank, 2011.

Dyfyniad MLA

Gertler, Paul, et al. Impact Evaluation in Practice. World Bank, 2011.

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