Allen, M. G., & Stevens, R. L. (1998). Middle grades social studies: Teaching and learning for active and responsible citizenship (2a. ed.). Allyn and Bacon.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিAllen, Michael G., এবং Robert L. Stevens. Middle Grades Social Studies: Teaching and Learning for Active and Responsible Citizenship. 2a. ed. Boston: Allyn and Bacon, 1998.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিAllen, Michael G., এবং Robert L. Stevens. Middle Grades Social Studies: Teaching and Learning for Active and Responsible Citizenship. 2a. ed. Allyn and Bacon, 1998.
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