Wittkower, R. (1988). Architectural principles in the age of humanism. Academy Editions.
Chicago-viite (17. p.)Wittkower, Rudolf. Architectural Principles in the Age of Humanism. London: Academy Editions, 1988.
MLA-viite (9. p.)Wittkower, Rudolf. Architectural Principles in the Age of Humanism. Academy Editions, 1988.
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