Education Development Center. (2000). Impact mathematics: Algebra and more for the middle grades. Glencoe/McGraw-Hill.
Čikaški stil citiranja (17. izdanje)Education Development Center. Impact Mathematics: Algebra and More for the Middle Grades. New York: Glencoe/McGraw-Hill, 2000.
MLA način citiranja (9. izdanje)Education Development Center. Impact Mathematics: Algebra and More for the Middle Grades. Glencoe/McGraw-Hill, 2000.
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