Graham, R. L. (2000). Concrete mathematics. (2nd ed.). Addison -Wesley/Pearson education.
शिकागो स्टाइल उद्धरणGraham, Ronald Letc. Concrete Mathematics. 2nd ed. Asia: Addison -Wesley/Pearson education, 2000.
एमएलए उद्धरणGraham, Ronald Letc. Concrete Mathematics. 2nd ed. Addison -Wesley/Pearson education, 2000.
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