Citazione Stile APA (7a Edizione)

Clark, G., Menard, C., & Zuluaga, A. M. (2000). The welfare effects of private sector participation in Guinea's urban water supply. World Bank.

Citazione stile Chigago Style (17a edizione)

Clark, George, Claude Menard, e Ana Maria Zuluaga. The Welfare Effects of Private Sector Participation in Guinea's Urban Water Supply. Washington, D.C: World Bank, 2000.

Citatione MLA (9a ed.)

Clark, George, et al. The Welfare Effects of Private Sector Participation in Guinea's Urban Water Supply. World Bank, 2000.