Howard G. Roepke. (1956). Movements of the British iron ans steel industry. Connecticut: Greenwood Press.
शिकागो स्टाइल उद्धरणHoward G. Roepke. Movements of the British Iron Ans Steel Industry. Connecticut: Greenwood Press, 1956.
एमएलए उद्धरणHoward G. Roepke. Movements of the British Iron Ans Steel Industry. Connecticut: Greenwood Press, 1956.
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