McCleary, R. M., & Barro, R. J. (2006). US-based private voluntary organizations: Religious and secular PVOS engaged in international relief & development, 1939 - 2004. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)McCleary, Rachel M., und Robert J. Barro. US-based Private Voluntary Organizations: Religious and Secular PVOS Engaged in International Relief & Development, 1939 - 2004. Cambridge, Mass: National Bureau of Economic Research, 2006.
MLA-Zitierstil (9. Ausg.)McCleary, Rachel M., und Robert J. Barro. US-based Private Voluntary Organizations: Religious and Secular PVOS Engaged in International Relief & Development, 1939 - 2004. National Bureau of Economic Research, 2006.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.