Houlden, B. (1962). Some techniques of operational research. The English Universities.
शिकागो स्टाइल उद्धरणHoulden, B.T. Some Techniques of Operational Research. London: The English Universities, 1962.
एमएलए उद्धरणHoulden, B.T. Some Techniques of Operational Research. The English Universities, 1962.
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