Không rõ. (2006). The Micro Economy today. NOTNXB.
शिकागो स्टाइल उद्धरणKhông rõ. The Micro Economy Today. NOTNXB, 2006.
एमएलए उद्धरणKhông rõ. The Micro Economy Today. NOTNXB, 2006.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.
Không rõ. (2006). The Micro Economy today. NOTNXB.
शिकागो स्टाइल उद्धरणKhông rõ. The Micro Economy Today. NOTNXB, 2006.
एमएलए उद्धरणKhông rõ. The Micro Economy Today. NOTNXB, 2006.