Sunal, C. S., & Haas, M. E. (2005). Social studies for the elementary and middle grades: A constructivist approach (2nd ed.). Pearson/Allyn & Bacon.
Citace podle Chicago (17th ed.)Sunal, Cynthia S., a Mary E. Haas. Social Studies for the Elementary and Middle Grades: A Constructivist Approach. 2nd ed. Boston: Pearson/Allyn & Bacon, 2005.
Citace podle MLA (9th ed.)Sunal, Cynthia S., a Mary E. Haas. Social Studies for the Elementary and Middle Grades: A Constructivist Approach. 2nd ed. Pearson/Allyn & Bacon, 2005.
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