APA (7 वां संस्करण) प्रशस्ति पत्र
Flowers, B. S. (2009). Skyscraper: The politics and power of building New York City in the twentieth century. University of Pennsylvania Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Flowers, Benjamin Sitton. Skyscraper: The Politics and Power of Building New York City in the Twentieth Century. Philadelphia: University of Pennsylvania Press, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Flowers, Benjamin Sitton. Skyscraper: The Politics and Power of Building New York City in the Twentieth Century. University of Pennsylvania Press, 2009.
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