Cita APA (7a ed.)

Gwatkin, D. R., Wagstaff, A., & Yazbeck, A. (2005). Reaching the Poor with Health, Nutrition, and Population Services: What Works, What Doesn't, and Why. World Bank.

Cita Chicago Style (17a ed.)

Gwatkin, Davidson R., Adam Wagstaff, y Abdo Yazbeck. Reaching the Poor with Health, Nutrition, and Population Services: What Works, What Doesn't, and Why. Washington, DC: World Bank, 2005.

Cita MLA (8a ed.)

Gwatkin, Davidson R., et al. Reaching the Poor with Health, Nutrition, and Population Services: What Works, What Doesn't, and Why. World Bank, 2005.