Flowers, B. S. (2009). Skyscraper: The politics and power of building New York City in the twentieth century. University of Pennsylvania Press.
Lua i Stíl Chicago (17ú heag.)Flowers, Benjamin Sitton. Skyscraper: The Politics and Power of Building New York City in the Twentieth Century. Philadelphia: University of Pennsylvania Press, 2009.
Lua MLA (9ú heag.)Flowers, Benjamin Sitton. Skyscraper: The Politics and Power of Building New York City in the Twentieth Century. University of Pennsylvania Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.