Das Gupta, Frajnaparamita.
The causes of things : the effects of age and schooling on the development of physical and personal causality in Zambian children.
Thesis (M.A.)--University of Zambia, 1982.
Includes bibliographical references.
Children -- Zambia.--Children -- Zambia.
Child development -- Zambia.--Child development -- Zambia.
Causation.