Пентагон — разлика између измена

* {{Cite book |ref= harv|last=Goldberg|first=Alfred|title=The Pentagon: The First Fifty Years|url= https://archive.org/details/pentagonthefirst00wash|publisher=Office of the Secretary of Defense / Government Printing Office|year=1992|isbn=978-0-16-037979-6}}

* {{Cite book |ref= harv|last=Vogel|first=Steve|title=The Pentagon – A History: The Untold Story of the Wartime Race to Build the Pentagon and to Restore it Sixty Years Later|url= https://archive.org/details/pentagonhistoryu00voge|year=2007|publisher=Random House|isbn=978-0-8129-7325-9}}

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