Collinge, R. A. (1999). Economics by design: Principles and issues. Upper Saddle River, N.J: Prentice Hall.
शिकागो स्टाइल उद्धरणCollinge, Robert A. Economics By Design: Principles and Issues. Upper Saddle River, N.J: Prentice Hall, 1999.
एमएलए उद्धरणCollinge, Robert A. Economics By Design: Principles and Issues. Upper Saddle River, N.J: Prentice Hall, 1999.
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