Chapin, J. R. (2009). Elementary social studies: A practical guide (7th ed.). Pearson.
Cita Chicago Style (17a ed.)Chapin, June R. Elementary Social Studies: A Practical Guide. 7th ed. Boston [u.a.]: Pearson, 2009.
Cita MLA (9a ed.)Chapin, June R. Elementary Social Studies: A Practical Guide. 7th ed. Pearson, 2009.
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