Riordan, J. (1978). An Introduction to Combinatorial Analysis. Princeton, New Jersey: Princeton University Press.
शिकागो स्टाइल उद्धरणRiordan, John. An Introduction to Combinatorial Analysis. Princeton, New Jersey: Princeton University Press, 1978.
एमएलए उद्धरणRiordan, John. An Introduction to Combinatorial Analysis. Princeton, New Jersey: Princeton University Press, 1978.
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