Παραπομπή σε μορφή APA (7η εκδ.)
ebrary, Inc, Gwatkin, D. R., Wagstaff, A., & Yazbeck, A. (2005). Reaching the poor with health, nutrition, and population services: What works, what doesn't, and why. The World Bank.
Παραπομπή σε μορφή Chicago (17η εκδ.)
ebrary, Inc, Davidson R. Gwatkin, Adam Wagstaff, και Abdo Yazbeck. Reaching the Poor with Health, Nutrition, and Population Services: What Works, What Doesn't, and Why. Washington, DC: The World Bank, 2005.
Παραπομπή σε μορφή MLA (9th εκδ.)
ebrary, Inc, et al. Reaching the Poor with Health, Nutrition, and Population Services: What Works, What Doesn't, and Why. The World Bank, 2005.
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