Curriculum Development Centre. (1973). Social studies: Zambia primary course; experimental version (Experimental version.). NECZAM [National Educational Company of Zambia.
Citazione stile Chigago Style (17a edizione)Curriculum Development Centre. Social Studies: Zambia Primary Course; Experimental Version. Experimental version. Lusaka: NECZAM [National Educational Company of Zambia, 1973.
Citatione MLA (9a ed.)Curriculum Development Centre. Social Studies: Zambia Primary Course; Experimental Version. Experimental version. NECZAM [National Educational Company of Zambia, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.