Christoopher, P. J. (2009). Greatest citie in the world you should visit. Indiana Publishing House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChristoopher, Paul J. Greatest Citie in the World You Should Visit. New Delhi: Indiana Publishing House, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रChristoopher, Paul J. Greatest Citie in the World You Should Visit. Indiana Publishing House, 2009.
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