Education Development Center. (2000). Impact mathematics: Algebra and more for the middle grades. New York: Clencoe/McGraw-Hill.
शिकागो स्टाइल उद्धरणEducation Development Center. Impact Mathematics: Algebra and More for the Middle Grades. New York: Clencoe/McGraw-Hill, 2000.
एमएलए उद्धरणEducation Development Center. Impact Mathematics: Algebra and More for the Middle Grades. New York: Clencoe/McGraw-Hill, 2000.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.