Biggs, N. (2002). Discrete mathematics .- 2nd ed (2nd ed.). Oxford University Press.
शिकागो स्टाइल उद्धरणBiggs, Norman. Discrete Mathematics .- 2nd Ed. 2nd ed. Oxford [England] ; New York: Oxford University Press, 2002.
एमएलए उद्धरणBiggs, Norman. Discrete Mathematics .- 2nd Ed. 2nd ed. Oxford University Press, 2002.
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