Pelt, R. J. v., & Westfall, C. W. (1991). Architectural principles in the age of historicism. Yale University Press.
Lua i Stíl Chicago (17ú heag.)Pelt, R. J. van, agus Carroll William Westfall. Architectural Principles in the Age of Historicism. New Haven: Yale University Press, 1991.
Lua MLA (8ú heag.)Pelt, R. J. van, agus Carroll William Westfall. Architectural Principles in the Age of Historicism. Yale University Press, 1991.
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