(1993). Encyclopedia of teaching of social studies: Vol.3 Social studies in secondary schools. Anmol.
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Chicago-čujuhus (17. p.)
Encyclopedia of Teaching of Social Studies: Vol.3 Social Studies in Secondary Schools. New Delhi: Anmol, 1993.
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MLA-čujuhus (9. p.)
Encyclopedia of Teaching of Social Studies: Vol.3 Social Studies in Secondary Schools. Anmol, 1993.
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