Adelola, I. O. (1979). Social studies: Nigerian secondary schools social studies project. Heinemann Educational Books.
Citazione stile Chigago Style (17a edizione)Adelola, I. O. Social Studies: Nigerian Secondary Schools Social Studies Project. Ibadan: Heinemann Educational Books, 1979.
Citatione MLA (9a ed.)Adelola, I. O. Social Studies: Nigerian Secondary Schools Social Studies Project. Heinemann Educational Books, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.