Gallagher, H. M. P. (1966). Robert Mills, architect of the Washington Monument, 1781-1855. AMS Press.
Chicago Style aipamenaGallagher, Helen Mar Pierce. Robert Mills, Architect of the Washington Monument, 1781-1855. New York: AMS Press, 1966.
MLA aipamenaGallagher, Helen Mar Pierce. Robert Mills, Architect of the Washington Monument, 1781-1855. AMS Press, 1966.
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