Caroll, P. (1952). How to control production costs. MC -graw hill book company.
शिकागो स्टाइल उद्धरणCaroll, Phil. How to Control Production Costs. New York: MC -graw hill book company, 1952.
एमएलए उद्धरणCaroll, Phil. How to Control Production Costs. MC -graw hill book company, 1952.
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