Không rõ. (2008). Operations Strategy Competing in the 21st Century. NOTNXB.
शिकागो स्टाइल उद्धरणKhông rõ. Operations Strategy Competing in the 21st Century. NOTNXB, 2008.
एमएलए उद्धरणKhông rõ. Operations Strategy Competing in the 21st Century. NOTNXB, 2008.
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