Thomas, C., & Shaw, C. P. (1992). Issues in the development of multigrade schools. World Bank.
Citazione stile Chigago Style (17a edizione)Thomas, Christopher, e Christopher P. Shaw. Issues in the Development of Multigrade Schools. Washington, D.C: World Bank, 1992.
Citatione MLA (9a ed.)Thomas, Christopher, e Christopher P. Shaw. Issues in the Development of Multigrade Schools. World Bank, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.