Warren, K. (1976). The geography of British heavy industry since 1800. London: Oxford University Press.
शिकागो स्टाइल उद्धरणWarren, Kenneth. The Geography of British Heavy Industry Since 1800. London: Oxford University Press, 1976.
एमएलए उद्धरणWarren, Kenneth. The Geography of British Heavy Industry Since 1800. London: Oxford University Press, 1976.
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