Cummings, W. K. (1986). Low-cost primary education: Implementing an innovation in six nations. International Development Research Centre.
Chicago-referens (17:e uppl.)Cummings, William K. Low-cost Primary Education: Implementing an Innovation in Six Nations. Ottawa, Ont., Canada: International Development Research Centre, 1986.
MLA-referens (8:e uppl.)Cummings, William K. Low-cost Primary Education: Implementing an Innovation in Six Nations. International Development Research Centre, 1986.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.