Kreitler, P. G. (1990). Flatiron: A photographic history of the world's first steel frame skyscraper, 1901-1990. American Institute of Architects Press.
Chicago Style (17th ed.) CitationKreitler, Peter Gwillim. Flatiron: A Photographic History of the World's First Steel Frame Skyscraper, 1901-1990. Washington, D.C.: American Institute of Architects Press, 1990.
MLA (8th ed.) CitationKreitler, Peter Gwillim. Flatiron: A Photographic History of the World's First Steel Frame Skyscraper, 1901-1990. American Institute of Architects Press, 1990.
Warning: These citations may not always be 100% accurate.